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Finding the Fourth Proportional to 425,526.84, 638,306.46 and 159,259.32

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Solution

The fourth proportional to 425,526.84, 638,306.46 and 159,259.32 is: 238,895.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,526.84 : 638,306.46 = 159,259.32 : x
  2. Step 2: Convert to fraction form
    425,526.84/638,306.46 = 159,259.32/x
  3. Step 3: Cross multiply
    425,526.84x = 638,306.46 × 159,259.32
  4. Step 4: Simplify right side
    425,526.84x = 101,656,252,771.21
  5. Step 5: Solve for x
    x = 101,656,252,771.21/425,526.84
  6. Step 6: Final answer
    x = 238,895.04

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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.