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Finding the Fourth Proportional to 144,132.80, 216,417.90 and 110,890.40

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Solution

The fourth proportional to 144,132.80, 216,417.90 and 110,890.40 is: 166,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,132.80 : 216,417.90 = 110,890.40 : x
  2. Step 2: Convert to fraction form
    144,132.80/216,417.90 = 110,890.40/x
  3. Step 3: Cross multiply
    144,132.80x = 216,417.90 × 110,890.40
  4. Step 4: Simplify right side
    144,132.80x = 23,998,667,498.16
  5. Step 5: Solve for x
    x = 23,998,667,498.16/144,132.80
  6. Step 6: Final answer
    x = 166,503.86

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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.