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Finding the Fourth Proportional to 238,851.92, 358,339.85 and 70,378.20

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Solution

The fourth proportional to 238,851.92, 358,339.85 and 70,378.20 is: 105,585.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,851.92 : 358,339.85 = 70,378.20 : x
  2. Step 2: Convert to fraction form
    238,851.92/358,339.85 = 70,378.20/x
  3. Step 3: Cross multiply
    238,851.92x = 358,339.85 × 70,378.20
  4. Step 4: Simplify right side
    238,851.92x = 25,219,313,279.38
  5. Step 5: Solve for x
    x = 25,219,313,279.38/238,851.92
  6. Step 6: Final answer
    x = 105,585.56

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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.