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Finding the Fourth Proportional to 124,870.60, 187,305.90 and 113,498.20

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Solution

The fourth proportional to 124,870.60, 187,305.90 and 113,498.20 is: 170,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,870.60 : 187,305.90 = 113,498.20 : x
  2. Step 2: Convert to fraction form
    124,870.60/187,305.90 = 113,498.20/x
  3. Step 3: Cross multiply
    124,870.60x = 187,305.90 × 113,498.20
  4. Step 4: Simplify right side
    124,870.60x = 21,258,882,499.38
  5. Step 5: Solve for x
    x = 21,258,882,499.38/124,870.60
  6. Step 6: Final answer
    x = 170,247.30

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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.