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Finding the Fourth Proportional to 425,257.59, 637,898.69 and 109,714.50

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Solution

The fourth proportional to 425,257.59, 637,898.69 and 109,714.50 is: 164,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,257.59 : 637,898.69 = 109,714.50 : x
  2. Step 2: Convert to fraction form
    425,257.59/637,898.69 = 109,714.50/x
  3. Step 3: Cross multiply
    425,257.59x = 637,898.69 × 109,714.50
  4. Step 4: Simplify right side
    425,257.59x = 69,986,736,098.29
  5. Step 5: Solve for x
    x = 69,986,736,098.29/425,257.59
  6. Step 6: Final answer
    x = 164,574.92

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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.