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Finding the Fourth Proportional to 104,775.30, 144,581.85 and 57,027.60

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Solution

The fourth proportional to 104,775.30, 144,581.85 and 57,027.60 is: 78,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,775.30 : 144,581.85 = 57,027.60 : x
  2. Step 2: Convert to fraction form
    104,775.30/144,581.85 = 57,027.60/x
  3. Step 3: Cross multiply
    104,775.30x = 144,581.85 × 57,027.60
  4. Step 4: Simplify right side
    104,775.30x = 8,245,155,909.06
  5. Step 5: Solve for x
    x = 8,245,155,909.06/104,775.30
  6. Step 6: Final answer
    x = 78,693.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.