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Finding the Fourth Proportional to 125,959.70, 188,868.42 and 47,041.80

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Solution

The fourth proportional to 125,959.70, 188,868.42 and 47,041.80 is: 70,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,959.70 : 188,868.42 = 47,041.80 : x
  2. Step 2: Convert to fraction form
    125,959.70/188,868.42 = 47,041.80/x
  3. Step 3: Cross multiply
    125,959.70x = 188,868.42 × 47,041.80
  4. Step 4: Simplify right side
    125,959.70x = 8,884,710,439.96
  5. Step 5: Solve for x
    x = 8,884,710,439.96/125,959.70
  6. Step 6: Final answer
    x = 70,536.14

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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.