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Finding the Fourth Proportional to 130,159.80, 195,239.88 and 40,204.44

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Solution

The fourth proportional to 130,159.80, 195,239.88 and 40,204.44 is: 60,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,159.80 : 195,239.88 = 40,204.44 : x
  2. Step 2: Convert to fraction form
    130,159.80/195,239.88 = 40,204.44/x
  3. Step 3: Cross multiply
    130,159.80x = 195,239.88 × 40,204.44
  4. Step 4: Simplify right side
    130,159.80x = 7,849,510,041.07
  5. Step 5: Solve for x
    x = 7,849,510,041.07/130,159.80
  6. Step 6: Final answer
    x = 60,306.72

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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.