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Finding the Fourth Proportional to 92,649.12, 139,159.66 and 55,282.12

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Solution

The fourth proportional to 92,649.12, 139,159.66 and 55,282.12 is: 83,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,649.12 : 139,159.66 = 55,282.12 : x
  2. Step 2: Convert to fraction form
    92,649.12/139,159.66 = 55,282.12/x
  3. Step 3: Cross multiply
    92,649.12x = 139,159.66 × 55,282.12
  4. Step 4: Simplify right side
    92,649.12x = 7,693,041,023.28
  5. Step 5: Solve for x
    x = 7,693,041,023.28/92,649.12
  6. Step 6: Final answer
    x = 83,034.15

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1.5x scale

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.