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Finding the Fourth Proportional to 98,761.74, 148,109.70 and 42,566.76

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Solution

The fourth proportional to 98,761.74, 148,109.70 and 42,566.76 is: 63,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,761.74 : 148,109.70 = 42,566.76 : x
  2. Step 2: Convert to fraction form
    98,761.74/148,109.70 = 42,566.76/x
  3. Step 3: Cross multiply
    98,761.74x = 148,109.70 × 42,566.76
  4. Step 4: Simplify right side
    98,761.74x = 6,304,550,053.57
  5. Step 5: Solve for x
    x = 6,304,550,053.57/98,761.74
  6. Step 6: Final answer
    x = 63,835.96

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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.