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Finding the Fourth Proportional to 88,907.52, 122,598.72 and 55,315.20

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Solution

The fourth proportional to 88,907.52, 122,598.72 and 55,315.20 is: 76,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,907.52 : 122,598.72 = 55,315.20 : x
  2. Step 2: Convert to fraction form
    88,907.52/122,598.72 = 55,315.20/x
  3. Step 3: Cross multiply
    88,907.52x = 122,598.72 × 55,315.20
  4. Step 4: Simplify right side
    88,907.52x = 6,781,572,716.54
  5. Step 5: Solve for x
    x = 6,781,572,716.54/88,907.52
  6. Step 6: Final answer
    x = 76,276.71

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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.