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Finding the Fourth Proportional to 96,211.20, 144,489.60 and 69,945.60

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Solution

The fourth proportional to 96,211.20, 144,489.60 and 69,945.60 is: 105,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,211.20 : 144,489.60 = 69,945.60 : x
  2. Step 2: Convert to fraction form
    96,211.20/144,489.60 = 69,945.60/x
  3. Step 3: Cross multiply
    96,211.20x = 144,489.60 × 69,945.60
  4. Step 4: Simplify right side
    96,211.20x = 10,106,411,765.76
  5. Step 5: Solve for x
    x = 10,106,411,765.76/96,211.20
  6. Step 6: Final answer
    x = 105,044.03

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1.5x scale

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.