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Finding the Fourth Proportional to 107,857.98, 148,844.50 and 62,562.78

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Solution

The fourth proportional to 107,857.98, 148,844.50 and 62,562.78 is: 86,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,857.98 : 148,844.50 = 62,562.78 : x
  2. Step 2: Convert to fraction form
    107,857.98/148,844.50 = 62,562.78/x
  3. Step 3: Cross multiply
    107,857.98x = 148,844.50 × 62,562.78
  4. Step 4: Simplify right side
    107,857.98x = 9,312,125,707.71
  5. Step 5: Solve for x
    x = 9,312,125,707.71/107,857.98
  6. Step 6: Final answer
    x = 86,336.92

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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.