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Finding the Fourth Proportional to 107,877.70, 148,870.74 and 62,581.96

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Solution

The fourth proportional to 107,877.70, 148,870.74 and 62,581.96 is: 86,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,877.70 : 148,870.74 = 62,581.96 : x
  2. Step 2: Convert to fraction form
    107,877.70/148,870.74 = 62,581.96/x
  3. Step 3: Cross multiply
    107,877.70x = 148,870.74 × 62,581.96
  4. Step 4: Simplify right side
    107,877.70x = 9,316,622,695.85
  5. Step 5: Solve for x
    x = 9,316,622,695.85/107,877.70
  6. Step 6: Final answer
    x = 86,362.82

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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.