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Finding the Fourth Proportional to 606,396.38, 909,590.92 and 157,116.11

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Solution

The fourth proportional to 606,396.38, 909,590.92 and 157,116.11 is: 235,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,396.38 : 909,590.92 = 157,116.11 : x
  2. Step 2: Convert to fraction form
    606,396.38/909,590.92 = 157,116.11/x
  3. Step 3: Cross multiply
    606,396.38x = 909,590.92 × 157,116.11
  4. Step 4: Simplify right side
    606,396.38x = 142,911,382,100.98
  5. Step 5: Solve for x
    x = 142,911,382,100.98/606,396.38
  6. Step 6: Final answer
    x = 235,673.21

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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.