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Finding the Fourth Proportional to 293,140.80, 439,711.20 and 93,475.80

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Solution

The fourth proportional to 293,140.80, 439,711.20 and 93,475.80 is: 140,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,140.80 : 439,711.20 = 93,475.80 : x
  2. Step 2: Convert to fraction form
    293,140.80/439,711.20 = 93,475.80/x
  3. Step 3: Cross multiply
    293,140.80x = 439,711.20 × 93,475.80
  4. Step 4: Simplify right side
    293,140.80x = 41,102,356,188.96
  5. Step 5: Solve for x
    x = 41,102,356,188.96/293,140.80
  6. Step 6: Final answer
    x = 140,213.70

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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.