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Finding the Fourth Proportional to 117,616.60, 162,308.10 and 63,900.40

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Solution

The fourth proportional to 117,616.60, 162,308.10 and 63,900.40 is: 88,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,616.60 : 162,308.10 = 63,900.40 : x
  2. Step 2: Convert to fraction form
    117,616.60/162,308.10 = 63,900.40/x
  3. Step 3: Cross multiply
    117,616.60x = 162,308.10 × 63,900.40
  4. Step 4: Simplify right side
    117,616.60x = 10,371,552,513.24
  5. Step 5: Solve for x
    x = 10,371,552,513.24/117,616.60
  6. Step 6: Final answer
    x = 88,181.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.