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Finding the Fourth Proportional to 144,944.90, 217,417.35 and 70,100.90

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Solution

The fourth proportional to 144,944.90, 217,417.35 and 70,100.90 is: 105,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,944.90 : 217,417.35 = 70,100.90 : x
  2. Step 2: Convert to fraction form
    144,944.90/217,417.35 = 70,100.90/x
  3. Step 3: Cross multiply
    144,944.90x = 217,417.35 × 70,100.90
  4. Step 4: Simplify right side
    144,944.90x = 15,241,151,910.62
  5. Step 5: Solve for x
    x = 15,241,151,910.62/144,944.90
  6. Step 6: Final answer
    x = 105,151.35

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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.