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Finding the Fourth Proportional to 239,048.80, 358,487.52 and 79,095.28

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Solution

The fourth proportional to 239,048.80, 358,487.52 and 79,095.28 is: 118,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,048.80 : 358,487.52 = 79,095.28 : x
  2. Step 2: Convert to fraction form
    239,048.80/358,487.52 = 79,095.28/x
  3. Step 3: Cross multiply
    239,048.80x = 358,487.52 × 79,095.28
  4. Step 4: Simplify right side
    239,048.80x = 28,354,670,770.91
  5. Step 5: Solve for x
    x = 28,354,670,770.91/239,048.80
  6. Step 6: Final answer
    x = 118,614.57

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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.