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Finding the Fourth Proportional to 288,994.52, 398,892.66 and 168,159.22

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Solution

The fourth proportional to 288,994.52, 398,892.66 and 168,159.22 is: 232,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,994.52 : 398,892.66 = 168,159.22 : x
  2. Step 2: Convert to fraction form
    288,994.52/398,892.66 = 168,159.22/x
  3. Step 3: Cross multiply
    288,994.52x = 398,892.66 × 168,159.22
  4. Step 4: Simplify right side
    288,994.52x = 67,077,478,569.33
  5. Step 5: Solve for x
    x = 67,077,478,569.33/288,994.52
  6. Step 6: Final answer
    x = 232,106.40

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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.