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Finding the Fourth Proportional to 161,641.08, 223,064.61 and 93,697.43

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Solution

The fourth proportional to 161,641.08, 223,064.61 and 93,697.43 is: 129,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,641.08 : 223,064.61 = 93,697.43 : x
  2. Step 2: Convert to fraction form
    161,641.08/223,064.61 = 93,697.43/x
  3. Step 3: Cross multiply
    161,641.08x = 223,064.61 × 93,697.43
  4. Step 4: Simplify right side
    161,641.08x = 20,900,579,565.63
  5. Step 5: Solve for x
    x = 20,900,579,565.63/161,641.08
  6. Step 6: Final answer
    x = 129,302.40

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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.