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Finding the Fourth Proportional to 435,727.20, 653,461.20 and 169,334.40

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Solution

The fourth proportional to 435,727.20, 653,461.20 and 169,334.40 is: 253,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,727.20 : 653,461.20 = 169,334.40 : x
  2. Step 2: Convert to fraction form
    435,727.20/653,461.20 = 169,334.40/x
  3. Step 3: Cross multiply
    435,727.20x = 653,461.20 × 169,334.40
  4. Step 4: Simplify right side
    435,727.20x = 110,653,460,225.28
  5. Step 5: Solve for x
    x = 110,653,460,225.28/435,727.20
  6. Step 6: Final answer
    x = 253,951.23

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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.