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Finding the Fourth Proportional to 60,940.15, 91,332.16 and 53,009.44

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Solution

The fourth proportional to 60,940.15, 91,332.16 and 53,009.44 is: 79,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,940.15 : 91,332.16 = 53,009.44 : x
  2. Step 2: Convert to fraction form
    60,940.15/91,332.16 = 53,009.44/x
  3. Step 3: Cross multiply
    60,940.15x = 91,332.16 × 53,009.44
  4. Step 4: Simplify right side
    60,940.15x = 4,841,466,294.74
  5. Step 5: Solve for x
    x = 4,841,466,294.74/60,940.15
  6. Step 6: Final answer
    x = 79,446.25

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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.