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Finding the Fourth Proportional to 318,807.52, 439,957.26 and 175,568.14

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Solution

The fourth proportional to 318,807.52, 439,957.26 and 175,568.14 is: 242,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,807.52 : 439,957.26 = 175,568.14 : x
  2. Step 2: Convert to fraction form
    318,807.52/439,957.26 = 175,568.14/x
  3. Step 3: Cross multiply
    318,807.52x = 439,957.26 × 175,568.14
  4. Step 4: Simplify right side
    318,807.52x = 77,242,477,817.70
  5. Step 5: Solve for x
    x = 77,242,477,817.70/318,807.52
  6. Step 6: Final answer
    x = 242,285.62

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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.