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Finding the Fourth Proportional to 77,327.91, 106,710.74 and 45,060.47

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Solution

The fourth proportional to 77,327.91, 106,710.74 and 45,060.47 is: 62,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,327.91 : 106,710.74 = 45,060.47 : x
  2. Step 2: Convert to fraction form
    77,327.91/106,710.74 = 45,060.47/x
  3. Step 3: Cross multiply
    77,327.91x = 106,710.74 × 45,060.47
  4. Step 4: Simplify right side
    77,327.91x = 4,808,436,308.90
  5. Step 5: Solve for x
    x = 4,808,436,308.90/77,327.91
  6. Step 6: Final answer
    x = 62,182.42

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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.