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Finding the Fourth Proportional to 72,455.88, 108,699.48 and 22,535.04

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Solution

The fourth proportional to 72,455.88, 108,699.48 and 22,535.04 is: 33,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,455.88 : 108,699.48 = 22,535.04 : x
  2. Step 2: Convert to fraction form
    72,455.88/108,699.48 = 22,535.04/x
  3. Step 3: Cross multiply
    72,455.88x = 108,699.48 × 22,535.04
  4. Step 4: Simplify right side
    72,455.88x = 2,449,547,129.78
  5. Step 5: Solve for x
    x = 2,449,547,129.78/72,455.88
  6. Step 6: Final answer
    x = 33,807.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.