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Finding the Fourth Proportional to 132,012.40, 182,058.96 and 103,668.88

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Solution

The fourth proportional to 132,012.40, 182,058.96 and 103,668.88 is: 142,970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,012.40 : 182,058.96 = 103,668.88 : x
  2. Step 2: Convert to fraction form
    132,012.40/182,058.96 = 103,668.88/x
  3. Step 3: Cross multiply
    132,012.40x = 182,058.96 × 103,668.88
  4. Step 4: Simplify right side
    132,012.40x = 18,873,848,477.16
  5. Step 5: Solve for x
    x = 18,873,848,477.16/132,012.40
  6. Step 6: Final answer
    x = 142,970.27

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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.