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Finding the Fourth Proportional to 212,059.88, 292,545.10 and 187,885.50

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Solution

The fourth proportional to 212,059.88, 292,545.10 and 187,885.50 is: 259,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,059.88 : 292,545.10 = 187,885.50 : x
  2. Step 2: Convert to fraction form
    212,059.88/292,545.10 = 187,885.50/x
  3. Step 3: Cross multiply
    212,059.88x = 292,545.10 × 187,885.50
  4. Step 4: Simplify right side
    212,059.88x = 54,964,982,386.05
  5. Step 5: Solve for x
    x = 54,964,982,386.05/212,059.88
  6. Step 6: Final answer
    x = 259,195.57

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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.