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Finding the Fourth Proportional to 239,764.60, 359,646.80 and 71,284.19

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Solution

The fourth proportional to 239,764.60, 359,646.80 and 71,284.19 is: 106,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,764.60 : 359,646.80 = 71,284.19 : x
  2. Step 2: Convert to fraction form
    239,764.60/359,646.80 = 71,284.19/x
  3. Step 3: Cross multiply
    239,764.60x = 359,646.80 × 71,284.19
  4. Step 4: Simplify right side
    239,764.60x = 25,637,131,366.79
  5. Step 5: Solve for x
    x = 25,637,131,366.79/239,764.60
  6. Step 6: Final answer
    x = 106,926.26

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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.