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Finding the Fourth Proportional to 99,934.83, 137,970.14 and 62,260.11

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Solution

The fourth proportional to 99,934.83, 137,970.14 and 62,260.11 is: 85,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.83 : 137,970.14 = 62,260.11 : x
  2. Step 2: Convert to fraction form
    99,934.83/137,970.14 = 62,260.11/x
  3. Step 3: Cross multiply
    99,934.83x = 137,970.14 × 62,260.11
  4. Step 4: Simplify right side
    99,934.83x = 8,590,035,781.81
  5. Step 5: Solve for x
    x = 8,590,035,781.81/99,934.83
  6. Step 6: Final answer
    x = 85,956.38

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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.