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Finding the Fourth Proportional to 315,792.82, 435,794.20 and 170,598.66

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Solution

The fourth proportional to 315,792.82, 435,794.20 and 170,598.66 is: 235,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,792.82 : 435,794.20 = 170,598.66 : x
  2. Step 2: Convert to fraction form
    315,792.82/435,794.20 = 170,598.66/x
  3. Step 3: Cross multiply
    315,792.82x = 435,794.20 × 170,598.66
  4. Step 4: Simplify right side
    315,792.82x = 74,345,906,555.77
  5. Step 5: Solve for x
    x = 74,345,906,555.77/315,792.82
  6. Step 6: Final answer
    x = 235,426.21

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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.