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Finding the Fourth Proportional to 162,912.30, 244,368.45 and 148,478.10

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Solution

The fourth proportional to 162,912.30, 244,368.45 and 148,478.10 is: 222,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,912.30 : 244,368.45 = 148,478.10 : x
  2. Step 2: Convert to fraction form
    162,912.30/244,368.45 = 148,478.10/x
  3. Step 3: Cross multiply
    162,912.30x = 244,368.45 × 148,478.10
  4. Step 4: Simplify right side
    162,912.30x = 36,283,363,155.95
  5. Step 5: Solve for x
    x = 36,283,363,155.95/162,912.30
  6. Step 6: Final answer
    x = 222,717.15

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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.