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Finding the Fourth Proportional to 88,192.80, 121,657.59 and 55,868.22

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Solution

The fourth proportional to 88,192.80, 121,657.59 and 55,868.22 is: 77,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,192.80 : 121,657.59 = 55,868.22 : x
  2. Step 2: Convert to fraction form
    88,192.80/121,657.59 = 55,868.22/x
  3. Step 3: Cross multiply
    88,192.80x = 121,657.59 × 55,868.22
  4. Step 4: Simplify right side
    88,192.80x = 6,796,793,002.79
  5. Step 5: Solve for x
    x = 6,796,793,002.79/88,192.80
  6. Step 6: Final answer
    x = 77,067.44

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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.