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Finding the Fourth Proportional to 161,590.65, 241,930.29 and 85,516.86

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Solution

The fourth proportional to 161,590.65, 241,930.29 and 85,516.86 is: 128,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,590.65 : 241,930.29 = 85,516.86 : x
  2. Step 2: Convert to fraction form
    161,590.65/241,930.29 = 85,516.86/x
  3. Step 3: Cross multiply
    161,590.65x = 241,930.29 × 85,516.86
  4. Step 4: Simplify right side
    161,590.65x = 20,689,119,967.62
  5. Step 5: Solve for x
    x = 20,689,119,967.62/161,590.65
  6. Step 6: Final answer
    x = 128,034.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.