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Finding the Fourth Proportional to 125,402.80, 188,153.16 and 55,232.92

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Solution

The fourth proportional to 125,402.80, 188,153.16 and 55,232.92 is: 82,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,402.80 : 188,153.16 = 55,232.92 : x
  2. Step 2: Convert to fraction form
    125,402.80/188,153.16 = 55,232.92/x
  3. Step 3: Cross multiply
    125,402.80x = 188,153.16 × 55,232.92
  4. Step 4: Simplify right side
    125,402.80x = 10,392,248,434.03
  5. Step 5: Solve for x
    x = 10,392,248,434.03/125,402.80
  6. Step 6: Final answer
    x = 82,870.94

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1.5x scale

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.