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Finding the Fourth Proportional to 88,292.62, 121,879.11 and 54,314.88

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Solution

The fourth proportional to 88,292.62, 121,879.11 and 54,314.88 is: 74,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,292.62 : 121,879.11 = 54,314.88 : x
  2. Step 2: Convert to fraction form
    88,292.62/121,879.11 = 54,314.88/x
  3. Step 3: Cross multiply
    88,292.62x = 121,879.11 × 54,314.88
  4. Step 4: Simplify right side
    88,292.62x = 6,619,849,234.16
  5. Step 5: Solve for x
    x = 6,619,849,234.16/88,292.62
  6. Step 6: Final answer
    x = 74,976.25

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1.5x scale

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.