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Finding the Fourth Proportional to 233,187.30, 349,780.95 and 75,431.70

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Solution

The fourth proportional to 233,187.30, 349,780.95 and 75,431.70 is: 113,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,187.30 : 349,780.95 = 75,431.70 : x
  2. Step 2: Convert to fraction form
    233,187.30/349,780.95 = 75,431.70/x
  3. Step 3: Cross multiply
    233,187.30x = 349,780.95 × 75,431.70
  4. Step 4: Simplify right side
    233,187.30x = 26,384,571,686.12
  5. Step 5: Solve for x
    x = 26,384,571,686.12/233,187.30
  6. Step 6: Final answer
    x = 113,147.55

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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.