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Finding the Fourth Proportional to 107,876.96, 148,864.05 and 60,128.67

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Solution

The fourth proportional to 107,876.96, 148,864.05 and 60,128.67 is: 82,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.96 : 148,864.05 = 60,128.67 : x
  2. Step 2: Convert to fraction form
    107,876.96/148,864.05 = 60,128.67/x
  3. Step 3: Cross multiply
    107,876.96x = 148,864.05 × 60,128.67
  4. Step 4: Simplify right side
    107,876.96x = 8,950,997,337.31
  5. Step 5: Solve for x
    x = 8,950,997,337.31/107,876.96
  6. Step 6: Final answer
    x = 82,974.14

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1.5x scale

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.