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Finding the Fourth Proportional to 161,959.86, 223,507.56 and 93,980.58

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Solution

The fourth proportional to 161,959.86, 223,507.56 and 93,980.58 is: 129,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,959.86 : 223,507.56 = 93,980.58 : x
  2. Step 2: Convert to fraction form
    161,959.86/223,507.56 = 93,980.58/x
  3. Step 3: Cross multiply
    161,959.86x = 223,507.56 × 93,980.58
  4. Step 4: Simplify right side
    161,959.86x = 21,005,370,123.18
  5. Step 5: Solve for x
    x = 21,005,370,123.18/161,959.86
  6. Step 6: Final answer
    x = 129,694.91

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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.