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Finding the Fourth Proportional to 372,543.88, 513,959.70 and 227,275.24

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Solution

The fourth proportional to 372,543.88, 513,959.70 and 227,275.24 is: 313,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,543.88 : 513,959.70 = 227,275.24 : x
  2. Step 2: Convert to fraction form
    372,543.88/513,959.70 = 227,275.24/x
  3. Step 3: Cross multiply
    372,543.88x = 513,959.70 × 227,275.24
  4. Step 4: Simplify right side
    372,543.88x = 116,810,314,167.83
  5. Step 5: Solve for x
    x = 116,810,314,167.83/372,543.88
  6. Step 6: Final answer
    x = 313,547.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.