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Finding the Fourth Proportional to 144,876.80, 217,412.40 and 65,950.40

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Solution

The fourth proportional to 144,876.80, 217,412.40 and 65,950.40 is: 98,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,876.80 : 217,412.40 = 65,950.40 : x
  2. Step 2: Convert to fraction form
    144,876.80/217,412.40 = 65,950.40/x
  3. Step 3: Cross multiply
    144,876.80x = 217,412.40 × 65,950.40
  4. Step 4: Simplify right side
    144,876.80x = 14,338,434,744.96
  5. Step 5: Solve for x
    x = 14,338,434,744.96/144,876.80
  6. Step 6: Final answer
    x = 98,969.85

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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.