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Finding the Fourth Proportional to 77,666.52, 116,324.76 and 54,396.84

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Solution

The fourth proportional to 77,666.52, 116,324.76 and 54,396.84 is: 81,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,666.52 : 116,324.76 = 54,396.84 : x
  2. Step 2: Convert to fraction form
    77,666.52/116,324.76 = 54,396.84/x
  3. Step 3: Cross multiply
    77,666.52x = 116,324.76 × 54,396.84
  4. Step 4: Simplify right side
    77,666.52x = 6,327,699,357.76
  5. Step 5: Solve for x
    x = 6,327,699,357.76/77,666.52
  6. Step 6: Final answer
    x = 81,472.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.