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Finding the Fourth Proportional to 144,027.60, 215,868.60 and 73,870.80

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Solution

The fourth proportional to 144,027.60, 215,868.60 and 73,870.80 is: 110,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,027.60 : 215,868.60 = 73,870.80 : x
  2. Step 2: Convert to fraction form
    144,027.60/215,868.60 = 73,870.80/x
  3. Step 3: Cross multiply
    144,027.60x = 215,868.60 × 73,870.80
  4. Step 4: Simplify right side
    144,027.60x = 15,946,386,176.88
  5. Step 5: Solve for x
    x = 15,946,386,176.88/144,027.60
  6. Step 6: Final answer
    x = 110,717.57

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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.