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Finding the Fourth Proportional to 92,472.32, 127,495.61 and 75,459.28

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Solution

The fourth proportional to 92,472.32, 127,495.61 and 75,459.28 is: 104,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,472.32 : 127,495.61 = 75,459.28 : x
  2. Step 2: Convert to fraction form
    92,472.32/127,495.61 = 75,459.28/x
  3. Step 3: Cross multiply
    92,472.32x = 127,495.61 × 75,459.28
  4. Step 4: Simplify right side
    92,472.32x = 9,620,726,803.67
  5. Step 5: Solve for x
    x = 9,620,726,803.67/92,472.32
  6. Step 6: Final answer
    x = 104,039.00

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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.