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Finding the Fourth Proportional to 99,896.76, 137,851.38 and 54,565.56

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Solution

The fourth proportional to 99,896.76, 137,851.38 and 54,565.56 is: 75,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,896.76 : 137,851.38 = 54,565.56 : x
  2. Step 2: Convert to fraction form
    99,896.76/137,851.38 = 54,565.56/x
  3. Step 3: Cross multiply
    99,896.76x = 137,851.38 × 54,565.56
  4. Step 4: Simplify right side
    99,896.76x = 7,521,937,746.47
  5. Step 5: Solve for x
    x = 7,521,937,746.47/99,896.76
  6. Step 6: Final answer
    x = 75,297.11

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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.