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Finding the Fourth Proportional to 75,458.88, 113,230.80 and 69,510.24

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Solution

The fourth proportional to 75,458.88, 113,230.80 and 69,510.24 is: 104,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,458.88 : 113,230.80 = 69,510.24 : x
  2. Step 2: Convert to fraction form
    75,458.88/113,230.80 = 69,510.24/x
  3. Step 3: Cross multiply
    75,458.88x = 113,230.80 × 69,510.24
  4. Step 4: Simplify right side
    75,458.88x = 7,870,700,083.39
  5. Step 5: Solve for x
    x = 7,870,700,083.39/75,458.88
  6. Step 6: Final answer
    x = 104,304.49

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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.