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Finding the Fourth Proportional to 288,994.48, 398,892.62 and 168,159.20

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Solution

The fourth proportional to 288,994.48, 398,892.62 and 168,159.20 is: 232,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,994.48 : 398,892.62 = 168,159.20 : x
  2. Step 2: Convert to fraction form
    288,994.48/398,892.62 = 168,159.20/x
  3. Step 3: Cross multiply
    288,994.48x = 398,892.62 × 168,159.20
  4. Step 4: Simplify right side
    288,994.48x = 67,077,462,291.04
  5. Step 5: Solve for x
    x = 67,077,462,291.04/288,994.48
  6. Step 6: Final answer
    x = 232,106.38

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1.5x scale

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.