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Finding the Fourth Proportional to 148,358, 222,572 and 48,517.80

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Solution

The fourth proportional to 148,358, 222,572 and 48,517.80 is: 72,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,358 : 222,572 = 48,517.80 : x
  2. Step 2: Convert to fraction form
    148,358/222,572 = 48,517.80/x
  3. Step 3: Cross multiply
    148,358x = 222,572 × 48,517.80
  4. Step 4: Simplify right side
    148,358x = 10,798,703,781.60
  5. Step 5: Solve for x
    x = 10,798,703,781.60/148,358
  6. Step 6: Final answer
    x = 72,788.15

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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.