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Finding the Fourth Proportional to 168,643.80, 252,965.70 and 158,802.30

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Solution

The fourth proportional to 168,643.80, 252,965.70 and 158,802.30 is: 238,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,643.80 : 252,965.70 = 158,802.30 : x
  2. Step 2: Convert to fraction form
    168,643.80/252,965.70 = 158,802.30/x
  3. Step 3: Cross multiply
    168,643.80x = 252,965.70 × 158,802.30
  4. Step 4: Simplify right side
    168,643.80x = 40,171,534,981.11
  5. Step 5: Solve for x
    x = 40,171,534,981.11/168,643.80
  6. Step 6: Final answer
    x = 238,203.45

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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.