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Finding the Fourth Proportional to 425,144.96, 586,070.88 and 272,161.28

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Solution

The fourth proportional to 425,144.96, 586,070.88 and 272,161.28 is: 375,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,144.96 : 586,070.88 = 272,161.28 : x
  2. Step 2: Convert to fraction form
    425,144.96/586,070.88 = 272,161.28/x
  3. Step 3: Cross multiply
    425,144.96x = 586,070.88 × 272,161.28
  4. Step 4: Simplify right side
    425,144.96x = 159,505,800,871.53
  5. Step 5: Solve for x
    x = 159,505,800,871.53/425,144.96
  6. Step 6: Final answer
    x = 375,179.80

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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.