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Finding the Fourth Proportional to 153,359.62, 230,086.37 and 78,532.74

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Solution

The fourth proportional to 153,359.62, 230,086.37 and 78,532.74 is: 117,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,359.62 : 230,086.37 = 78,532.74 : x
  2. Step 2: Convert to fraction form
    153,359.62/230,086.37 = 78,532.74/x
  3. Step 3: Cross multiply
    153,359.62x = 230,086.37 × 78,532.74
  4. Step 4: Simplify right side
    153,359.62x = 18,069,313,072.75
  5. Step 5: Solve for x
    x = 18,069,313,072.75/153,359.62
  6. Step 6: Final answer
    x = 117,823.15

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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.