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Finding the Fourth Proportional to 147,916.70, 221,745.45 and 88,775.90

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Solution

The fourth proportional to 147,916.70, 221,745.45 and 88,775.90 is: 133,086.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,916.70 : 221,745.45 = 88,775.90 : x
  2. Step 2: Convert to fraction form
    147,916.70/221,745.45 = 88,775.90/x
  3. Step 3: Cross multiply
    147,916.70x = 221,745.45 × 88,775.90
  4. Step 4: Simplify right side
    147,916.70x = 19,685,651,894.66
  5. Step 5: Solve for x
    x = 19,685,651,894.66/147,916.70
  6. Step 6: Final answer
    x = 133,086.07

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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.