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Finding the Fourth Proportional to 104,470.92, 143,615.44 and 89,881.84

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Solution

The fourth proportional to 104,470.92, 143,615.44 and 89,881.84 is: 123,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,470.92 : 143,615.44 = 89,881.84 : x
  2. Step 2: Convert to fraction form
    104,470.92/143,615.44 = 89,881.84/x
  3. Step 3: Cross multiply
    104,470.92x = 143,615.44 × 89,881.84
  4. Step 4: Simplify right side
    104,470.92x = 12,908,419,999.61
  5. Step 5: Solve for x
    x = 12,908,419,999.61/104,470.92
  6. Step 6: Final answer
    x = 123,559.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.