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Finding the Fourth Proportional to 112,626, 155,423.88 and 62,332.56

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Solution

The fourth proportional to 112,626, 155,423.88 and 62,332.56 is: 86,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,626 : 155,423.88 = 62,332.56 : x
  2. Step 2: Convert to fraction form
    112,626/155,423.88 = 62,332.56/x
  3. Step 3: Cross multiply
    112,626x = 155,423.88 × 62,332.56
  4. Step 4: Simplify right side
    112,626x = 9,687,968,325.53
  5. Step 5: Solve for x
    x = 9,687,968,325.53/112,626
  6. Step 6: Final answer
    x = 86,018.93

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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.