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Finding the Fourth Proportional to 92,649.12, 127,860.84 and 52,364.64

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Solution

The fourth proportional to 92,649.12, 127,860.84 and 52,364.64 is: 72,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,649.12 : 127,860.84 = 52,364.64 : x
  2. Step 2: Convert to fraction form
    92,649.12/127,860.84 = 52,364.64/x
  3. Step 3: Cross multiply
    92,649.12x = 127,860.84 × 52,364.64
  4. Step 4: Simplify right side
    92,649.12x = 6,695,386,856.70
  5. Step 5: Solve for x
    x = 6,695,386,856.70/92,649.12
  6. Step 6: Final answer
    x = 72,266.06

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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.