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Finding the Fourth Proportional to 295,436.80, 442,867.20 and 168,947.20

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Solution

The fourth proportional to 295,436.80, 442,867.20 and 168,947.20 is: 253,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,436.80 : 442,867.20 = 168,947.20 : x
  2. Step 2: Convert to fraction form
    295,436.80/442,867.20 = 168,947.20/x
  3. Step 3: Cross multiply
    295,436.80x = 442,867.20 × 168,947.20
  4. Step 4: Simplify right side
    295,436.80x = 74,821,173,411.84
  5. Step 5: Solve for x
    x = 74,821,173,411.84/295,436.80
  6. Step 6: Final answer
    x = 253,256.11

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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.