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Finding the Fourth Proportional to 153,785.76, 230,658.38 and 45,712.83

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Solution

The fourth proportional to 153,785.76, 230,658.38 and 45,712.83 is: 68,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,785.76 : 230,658.38 = 45,712.83 : x
  2. Step 2: Convert to fraction form
    153,785.76/230,658.38 = 45,712.83/x
  3. Step 3: Cross multiply
    153,785.76x = 230,658.38 × 45,712.83
  4. Step 4: Simplify right side
    153,785.76x = 10,544,047,084.45
  5. Step 5: Solve for x
    x = 10,544,047,084.45/153,785.76
  6. Step 6: Final answer
    x = 68,563.22

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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.