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Finding the Fourth Proportional to 147,861.60, 221,824.80 and 48,004.80

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Solution

The fourth proportional to 147,861.60, 221,824.80 and 48,004.80 is: 72,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,861.60 : 221,824.80 = 48,004.80 : x
  2. Step 2: Convert to fraction form
    147,861.60/221,824.80 = 48,004.80/x
  3. Step 3: Cross multiply
    147,861.60x = 221,824.80 × 48,004.80
  4. Step 4: Simplify right side
    147,861.60x = 10,648,655,159.04
  5. Step 5: Solve for x
    x = 10,648,655,159.04/147,861.60
  6. Step 6: Final answer
    x = 72,017.72

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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.