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Finding the Fourth Proportional to 373,791, 560,919.78 and 152,175

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Solution

The fourth proportional to 373,791, 560,919.78 and 152,175 is: 228,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,791 : 560,919.78 = 152,175 : x
  2. Step 2: Convert to fraction form
    373,791/560,919.78 = 152,175/x
  3. Step 3: Cross multiply
    373,791x = 560,919.78 × 152,175
  4. Step 4: Simplify right side
    373,791x = 85,357,967,521.50
  5. Step 5: Solve for x
    x = 85,357,967,521.50/373,791
  6. Step 6: Final answer
    x = 228,357.47

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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.