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Finding the Fourth Proportional to 72,249.58, 99,705.86 and 43,569.10

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Solution

The fourth proportional to 72,249.58, 99,705.86 and 43,569.10 is: 60,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,249.58 : 99,705.86 = 43,569.10 : x
  2. Step 2: Convert to fraction form
    72,249.58/99,705.86 = 43,569.10/x
  3. Step 3: Cross multiply
    72,249.58x = 99,705.86 × 43,569.10
  4. Step 4: Simplify right side
    72,249.58x = 4,344,094,367.08
  5. Step 5: Solve for x
    x = 4,344,094,367.08/72,249.58
  6. Step 6: Final answer
    x = 60,126.22

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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.