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Finding the Fourth Proportional to 96,015.60, 144,023.40 and 87,260.40

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Solution

The fourth proportional to 96,015.60, 144,023.40 and 87,260.40 is: 130,890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,015.60 : 144,023.40 = 87,260.40 : x
  2. Step 2: Convert to fraction form
    96,015.60/144,023.40 = 87,260.40/x
  3. Step 3: Cross multiply
    96,015.60x = 144,023.40 × 87,260.40
  4. Step 4: Simplify right side
    96,015.60x = 12,567,539,493.36
  5. Step 5: Solve for x
    x = 12,567,539,493.36/96,015.60
  6. Step 6: Final answer
    x = 130,890.60

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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.