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Finding the Fourth Proportional to 109,010.76, 150,475.96 and 63,703.50

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Solution

The fourth proportional to 109,010.76, 150,475.96 and 63,703.50 is: 87,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,010.76 : 150,475.96 = 63,703.50 : x
  2. Step 2: Convert to fraction form
    109,010.76/150,475.96 = 63,703.50/x
  3. Step 3: Cross multiply
    109,010.76x = 150,475.96 × 63,703.50
  4. Step 4: Simplify right side
    109,010.76x = 9,585,845,317.86
  5. Step 5: Solve for x
    x = 9,585,845,317.86/109,010.76
  6. Step 6: Final answer
    x = 87,934.85

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1.5x scale

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.