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Finding the Fourth Proportional to 108,006.10, 162,009.15 and 103,632.10

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Solution

The fourth proportional to 108,006.10, 162,009.15 and 103,632.10 is: 155,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,006.10 : 162,009.15 = 103,632.10 : x
  2. Step 2: Convert to fraction form
    108,006.10/162,009.15 = 103,632.10/x
  3. Step 3: Cross multiply
    108,006.10x = 162,009.15 × 103,632.10
  4. Step 4: Simplify right side
    108,006.10x = 16,789,348,433.72
  5. Step 5: Solve for x
    x = 16,789,348,433.72/108,006.10
  6. Step 6: Final answer
    x = 155,448.15

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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.