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Finding the Fourth Proportional to 143,807.16, 215,711.31 and 43,966.92

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Solution

The fourth proportional to 143,807.16, 215,711.31 and 43,966.92 is: 65,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,807.16 : 215,711.31 = 43,966.92 : x
  2. Step 2: Convert to fraction form
    143,807.16/215,711.31 = 43,966.92/x
  3. Step 3: Cross multiply
    143,807.16x = 215,711.31 × 43,966.92
  4. Step 4: Simplify right side
    143,807.16x = 9,484,161,909.87
  5. Step 5: Solve for x
    x = 9,484,161,909.87/143,807.16
  6. Step 6: Final answer
    x = 65,950.55

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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.