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Finding the Fourth Proportional to 395,178.65, 592,769.49 and 95,658.72

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Solution

The fourth proportional to 395,178.65, 592,769.49 and 95,658.72 is: 143,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,178.65 : 592,769.49 = 95,658.72 : x
  2. Step 2: Convert to fraction form
    395,178.65/592,769.49 = 95,658.72/x
  3. Step 3: Cross multiply
    395,178.65x = 592,769.49 × 95,658.72
  4. Step 4: Simplify right side
    395,178.65x = 56,703,571,959.26
  5. Step 5: Solve for x
    x = 56,703,571,959.26/395,178.65
  6. Step 6: Final answer
    x = 143,488.45

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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.