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Finding the Fourth Proportional to 91,593.72, 137,392.47 and 60,203.93

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Solution

The fourth proportional to 91,593.72, 137,392.47 and 60,203.93 is: 90,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,593.72 : 137,392.47 = 60,203.93 : x
  2. Step 2: Convert to fraction form
    91,593.72/137,392.47 = 60,203.93/x
  3. Step 3: Cross multiply
    91,593.72x = 137,392.47 × 60,203.93
  4. Step 4: Simplify right side
    91,593.72x = 8,271,565,959.44
  5. Step 5: Solve for x
    x = 8,271,565,959.44/91,593.72
  6. Step 6: Final answer
    x = 90,307.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.