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Finding the Fourth Proportional to 144,023.70, 216,035.55 and 120,404.10

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Solution

The fourth proportional to 144,023.70, 216,035.55 and 120,404.10 is: 180,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.70 : 216,035.55 = 120,404.10 : x
  2. Step 2: Convert to fraction form
    144,023.70/216,035.55 = 120,404.10/x
  3. Step 3: Cross multiply
    144,023.70x = 216,035.55 × 120,404.10
  4. Step 4: Simplify right side
    144,023.70x = 26,011,565,965.76
  5. Step 5: Solve for x
    x = 26,011,565,965.76/144,023.70
  6. Step 6: Final answer
    x = 180,606.15

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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.