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Finding the Fourth Proportional to 247,659.76, 341,774.13 and 140,226.76

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Solution

The fourth proportional to 247,659.76, 341,774.13 and 140,226.76 is: 193,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,659.76 : 341,774.13 = 140,226.76 : x
  2. Step 2: Convert to fraction form
    247,659.76/341,774.13 = 140,226.76/x
  3. Step 3: Cross multiply
    247,659.76x = 341,774.13 × 140,226.76
  4. Step 4: Simplify right side
    247,659.76x = 47,925,878,901.72
  5. Step 5: Solve for x
    x = 47,925,878,901.72/247,659.76
  6. Step 6: Final answer
    x = 193,515.00

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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.