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Finding the Fourth Proportional to 107,876.89, 148,875.15 and 60,130.59

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Solution

The fourth proportional to 107,876.89, 148,875.15 and 60,130.59 is: 82,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.89 : 148,875.15 = 60,130.59 : x
  2. Step 2: Convert to fraction form
    107,876.89/148,875.15 = 60,130.59/x
  3. Step 3: Cross multiply
    107,876.89x = 148,875.15 × 60,130.59
  4. Step 4: Simplify right side
    107,876.89x = 8,951,950,605.84
  5. Step 5: Solve for x
    x = 8,951,950,605.84/107,876.89
  6. Step 6: Final answer
    x = 82,983.02

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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.