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Finding the Fourth Proportional to 265,925.29, 398,555.81 and 170,902.57

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Solution

The fourth proportional to 265,925.29, 398,555.81 and 170,902.57 is: 256,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,925.29 : 398,555.81 = 170,902.57 : x
  2. Step 2: Convert to fraction form
    265,925.29/398,555.81 = 170,902.57/x
  3. Step 3: Cross multiply
    265,925.29x = 398,555.81 × 170,902.57
  4. Step 4: Simplify right side
    265,925.29x = 68,114,209,370.14
  5. Step 5: Solve for x
    x = 68,114,209,370.14/265,925.29
  6. Step 6: Final answer
    x = 256,140.40

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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.