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Finding the Fourth Proportional to 92,874, 128,166.64 and 50,432.52

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Solution

The fourth proportional to 92,874, 128,166.64 and 50,432.52 is: 69,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,874 : 128,166.64 = 50,432.52 : x
  2. Step 2: Convert to fraction form
    92,874/128,166.64 = 50,432.52/x
  3. Step 3: Cross multiply
    92,874x = 128,166.64 × 50,432.52
  4. Step 4: Simplify right side
    92,874x = 6,463,766,635.13
  5. Step 5: Solve for x
    x = 6,463,766,635.13/92,874
  6. Step 6: Final answer
    x = 69,597.16

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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.