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Finding the Fourth Proportional to 239,246.66, 358,748 and 79,264.88

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Solution

The fourth proportional to 239,246.66, 358,748 and 79,264.88 is: 118,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,246.66 : 358,748 = 79,264.88 : x
  2. Step 2: Convert to fraction form
    239,246.66/358,748 = 79,264.88/x
  3. Step 3: Cross multiply
    239,246.66x = 358,748 × 79,264.88
  4. Step 4: Simplify right side
    239,246.66x = 28,436,117,170.24
  5. Step 5: Solve for x
    x = 28,436,117,170.24/239,246.66
  6. Step 6: Final answer
    x = 118,856.90

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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.