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Finding the Fourth Proportional to 148,745.61, 205,200.27 and 88,281.95

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Solution

The fourth proportional to 148,745.61, 205,200.27 and 88,281.95 is: 121,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,745.61 : 205,200.27 = 88,281.95 : x
  2. Step 2: Convert to fraction form
    148,745.61/205,200.27 = 88,281.95/x
  3. Step 3: Cross multiply
    148,745.61x = 205,200.27 × 88,281.95
  4. Step 4: Simplify right side
    148,745.61x = 18,115,478,950.13
  5. Step 5: Solve for x
    x = 18,115,478,950.13/148,745.61
  6. Step 6: Final answer
    x = 121,788.33

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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.