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Finding the Fourth Proportional to 161,765.50, 223,210.13 and 93,769.20

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Solution

The fourth proportional to 161,765.50, 223,210.13 and 93,769.20 is: 129,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,765.50 : 223,210.13 = 93,769.20 : x
  2. Step 2: Convert to fraction form
    161,765.50/223,210.13 = 93,769.20/x
  3. Step 3: Cross multiply
    161,765.50x = 223,210.13 × 93,769.20
  4. Step 4: Simplify right side
    161,765.50x = 20,930,235,322.00
  5. Step 5: Solve for x
    x = 20,930,235,322.00/161,765.50
  6. Step 6: Final answer
    x = 129,386.27

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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.