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Finding the Fourth Proportional to 153,863.30, 230,600.55 and 74,807.30

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Solution

The fourth proportional to 153,863.30, 230,600.55 and 74,807.30 is: 112,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,863.30 : 230,600.55 = 74,807.30 : x
  2. Step 2: Convert to fraction form
    153,863.30/230,600.55 = 74,807.30/x
  3. Step 3: Cross multiply
    153,863.30x = 230,600.55 × 74,807.30
  4. Step 4: Simplify right side
    153,863.30x = 17,250,604,524.02
  5. Step 5: Solve for x
    x = 17,250,604,524.02/153,863.30
  6. Step 6: Final answer
    x = 112,116.43

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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.