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Finding the Fourth Proportional to 125,016.19, 187,440.72 and 68,883.19

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Solution

The fourth proportional to 125,016.19, 187,440.72 and 68,883.19 is: 103,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,016.19 : 187,440.72 = 68,883.19 : x
  2. Step 2: Convert to fraction form
    125,016.19/187,440.72 = 68,883.19/x
  3. Step 3: Cross multiply
    125,016.19x = 187,440.72 × 68,883.19
  4. Step 4: Simplify right side
    125,016.19x = 12,911,514,729.50
  5. Step 5: Solve for x
    x = 12,911,514,729.50/125,016.19
  6. Step 6: Final answer
    x = 103,278.74

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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.