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Finding the Fourth Proportional to 169,641.10, 254,461.65 and 155,125.90

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Solution

The fourth proportional to 169,641.10, 254,461.65 and 155,125.90 is: 232,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,641.10 : 254,461.65 = 155,125.90 : x
  2. Step 2: Convert to fraction form
    169,641.10/254,461.65 = 155,125.90/x
  3. Step 3: Cross multiply
    169,641.10x = 254,461.65 × 155,125.90
  4. Step 4: Simplify right side
    169,641.10x = 39,473,592,471.74
  5. Step 5: Solve for x
    x = 39,473,592,471.74/169,641.10
  6. Step 6: Final answer
    x = 232,688.85

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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.