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Finding the Fourth Proportional to 104,526.56, 144,167.16 and 72,314.80

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Solution

The fourth proportional to 104,526.56, 144,167.16 and 72,314.80 is: 99,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,526.56 : 144,167.16 = 72,314.80 : x
  2. Step 2: Convert to fraction form
    104,526.56/144,167.16 = 72,314.80/x
  3. Step 3: Cross multiply
    104,526.56x = 144,167.16 × 72,314.80
  4. Step 4: Simplify right side
    104,526.56x = 10,425,419,341.97
  5. Step 5: Solve for x
    x = 10,425,419,341.97/104,526.56
  6. Step 6: Final answer
    x = 99,739.43

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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.