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Finding the Fourth Proportional to 354,068.87, 530,572.95 and 154,280.97

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Solution

The fourth proportional to 354,068.87, 530,572.95 and 154,280.97 is: 231,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,068.87 : 530,572.95 = 154,280.97 : x
  2. Step 2: Convert to fraction form
    354,068.87/530,572.95 = 154,280.97/x
  3. Step 3: Cross multiply
    354,068.87x = 530,572.95 × 154,280.97
  4. Step 4: Simplify right side
    354,068.87x = 81,857,309,381.76
  5. Step 5: Solve for x
    x = 81,857,309,381.76/354,068.87
  6. Step 6: Final answer
    x = 231,190.36

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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.