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Finding the Fourth Proportional to 86,580.72, 119,476.08 and 48,337.76

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Solution

The fourth proportional to 86,580.72, 119,476.08 and 48,337.76 is: 66,703.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,580.72 : 119,476.08 = 48,337.76 : x
  2. Step 2: Convert to fraction form
    86,580.72/119,476.08 = 48,337.76/x
  3. Step 3: Cross multiply
    86,580.72x = 119,476.08 × 48,337.76
  4. Step 4: Simplify right side
    86,580.72x = 5,775,206,080.78
  5. Step 5: Solve for x
    x = 5,775,206,080.78/86,580.72
  6. Step 6: Final answer
    x = 66,703.14

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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.