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Finding the Fourth Proportional to 72,507.04, 100,002 and 59,909.92

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Solution

The fourth proportional to 72,507.04, 100,002 and 59,909.92 is: 82,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,507.04 : 100,002 = 59,909.92 : x
  2. Step 2: Convert to fraction form
    72,507.04/100,002 = 59,909.92/x
  3. Step 3: Cross multiply
    72,507.04x = 100,002 × 59,909.92
  4. Step 4: Simplify right side
    72,507.04x = 5,991,111,819.84
  5. Step 5: Solve for x
    x = 5,991,111,819.84/72,507.04
  6. Step 6: Final answer
    x = 82,628.00

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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.