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Finding the Fourth Proportional to 72,701.01, 100,332.68 and 44,412.03

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Solution

The fourth proportional to 72,701.01, 100,332.68 and 44,412.03 is: 61,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,701.01 : 100,332.68 = 44,412.03 : x
  2. Step 2: Convert to fraction form
    72,701.01/100,332.68 = 44,412.03/x
  3. Step 3: Cross multiply
    72,701.01x = 100,332.68 × 44,412.03
  4. Step 4: Simplify right side
    72,701.01x = 4,455,977,772.08
  5. Step 5: Solve for x
    x = 4,455,977,772.08/72,701.01
  6. Step 6: Final answer
    x = 61,291.83

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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.