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Finding the Fourth Proportional to 60,810.77, 83,976.62 and 57,497.47

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Solution

The fourth proportional to 60,810.77, 83,976.62 and 57,497.47 is: 79,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,810.77 : 83,976.62 = 57,497.47 : x
  2. Step 2: Convert to fraction form
    60,810.77/83,976.62 = 57,497.47/x
  3. Step 3: Cross multiply
    60,810.77x = 83,976.62 × 57,497.47
  4. Step 4: Simplify right side
    60,810.77x = 4,828,442,691.72
  5. Step 5: Solve for x
    x = 4,828,442,691.72/60,810.77
  6. Step 6: Final answer
    x = 79,401.11

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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.