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Finding the Fourth Proportional to 77,225.92, 106,569.96 and 45,395.68

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Solution

The fourth proportional to 77,225.92, 106,569.96 and 45,395.68 is: 62,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,225.92 : 106,569.96 = 45,395.68 : x
  2. Step 2: Convert to fraction form
    77,225.92/106,569.96 = 45,395.68/x
  3. Step 3: Cross multiply
    77,225.92x = 106,569.96 × 45,395.68
  4. Step 4: Simplify right side
    77,225.92x = 4,837,815,801.77
  5. Step 5: Solve for x
    x = 4,837,815,801.77/77,225.92
  6. Step 6: Final answer
    x = 62,644.97

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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.