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Finding the Fourth Proportional to 221,436.32, 305,598.84 and 125,951.90

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Solution

The fourth proportional to 221,436.32, 305,598.84 and 125,951.90 is: 173,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,436.32 : 305,598.84 = 125,951.90 : x
  2. Step 2: Convert to fraction form
    221,436.32/305,598.84 = 125,951.90/x
  3. Step 3: Cross multiply
    221,436.32x = 305,598.84 × 125,951.90
  4. Step 4: Simplify right side
    221,436.32x = 38,490,754,535.80
  5. Step 5: Solve for x
    x = 38,490,754,535.80/221,436.32
  6. Step 6: Final answer
    x = 173,823.13

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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.