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Finding the Fourth Proportional to 178,155.65, 245,842.19 and 101,656.82

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Solution

The fourth proportional to 178,155.65, 245,842.19 and 101,656.82 is: 140,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,155.65 : 245,842.19 = 101,656.82 : x
  2. Step 2: Convert to fraction form
    178,155.65/245,842.19 = 101,656.82/x
  3. Step 3: Cross multiply
    178,155.65x = 245,842.19 × 101,656.82
  4. Step 4: Simplify right side
    178,155.65x = 24,991,535,744.77
  5. Step 5: Solve for x
    x = 24,991,535,744.77/178,155.65
  6. Step 6: Final answer
    x = 140,279.22

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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.