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Finding the Fourth Proportional to 92,499.80, 138,749.70 and 63,959.45

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Solution

The fourth proportional to 92,499.80, 138,749.70 and 63,959.45 is: 95,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,499.80 : 138,749.70 = 63,959.45 : x
  2. Step 2: Convert to fraction form
    92,499.80/138,749.70 = 63,959.45/x
  3. Step 3: Cross multiply
    92,499.80x = 138,749.70 × 63,959.45
  4. Step 4: Simplify right side
    92,499.80x = 8,874,354,499.67
  5. Step 5: Solve for x
    x = 8,874,354,499.67/92,499.80
  6. Step 6: Final answer
    x = 95,939.18

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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.