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Finding the Fourth Proportional to 77,332, 106,716.34 and 45,502.96

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Solution

The fourth proportional to 77,332, 106,716.34 and 45,502.96 is: 62,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,332 : 106,716.34 = 45,502.96 : x
  2. Step 2: Convert to fraction form
    77,332/106,716.34 = 45,502.96/x
  3. Step 3: Cross multiply
    77,332x = 106,716.34 × 45,502.96
  4. Step 4: Simplify right side
    77,332x = 4,855,909,350.37
  5. Step 5: Solve for x
    x = 4,855,909,350.37/77,332
  6. Step 6: Final answer
    x = 62,793.01

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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.