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Finding the Fourth Proportional to 108,893,775.60, 163,340,663.40 and 100,284,431.40

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Solution

The fourth proportional to 108,893,775.60, 163,340,663.40 and 100,284,431.40 is: 150,426,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,893,775.60 : 163,340,663.40 = 100,284,431.40 : x
  2. Step 2: Convert to fraction form
    108,893,775.60/163,340,663.40 = 100,284,431.40/x
  3. Step 3: Cross multiply
    108,893,775.60x = 163,340,663.40 × 100,284,431.40
  4. Step 4: Simplify right side
    108,893,775.60x = 16,380,525,553,567,792
  5. Step 5: Solve for x
    x = 16,380,525,553,567,792/108,893,775.60
  6. Step 6: Final answer
    x = 150,426,647.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.