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Finding the Fourth Proportional to 132,425.86, 182,748.41 and 77,980.39

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Solution

The fourth proportional to 132,425.86, 182,748.41 and 77,980.39 is: 107,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,425.86 : 182,748.41 = 77,980.39 : x
  2. Step 2: Convert to fraction form
    132,425.86/182,748.41 = 77,980.39/x
  3. Step 3: Cross multiply
    132,425.86x = 182,748.41 × 77,980.39
  4. Step 4: Simplify right side
    132,425.86x = 14,250,792,283.68
  5. Step 5: Solve for x
    x = 14,250,792,283.68/132,425.86
  6. Step 6: Final answer
    x = 107,613.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.