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Finding the Fourth Proportional to 92,497.32, 127,559.66 and 61,397.55

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Solution

The fourth proportional to 92,497.32, 127,559.66 and 61,397.55 is: 84,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,497.32 : 127,559.66 = 61,397.55 : x
  2. Step 2: Convert to fraction form
    92,497.32/127,559.66 = 61,397.55/x
  3. Step 3: Cross multiply
    92,497.32x = 127,559.66 × 61,397.55
  4. Step 4: Simplify right side
    92,497.32x = 7,831,850,295.85
  5. Step 5: Solve for x
    x = 7,831,850,295.85/92,497.32
  6. Step 6: Final answer
    x = 84,671.11

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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.