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Finding the Fourth Proportional to 159,637.80, 239,303.10 and 124,079.40

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Solution

The fourth proportional to 159,637.80, 239,303.10 and 124,079.40 is: 185,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,637.80 : 239,303.10 = 124,079.40 : x
  2. Step 2: Convert to fraction form
    159,637.80/239,303.10 = 124,079.40/x
  3. Step 3: Cross multiply
    159,637.80x = 239,303.10 × 124,079.40
  4. Step 4: Simplify right side
    159,637.80x = 29,692,585,066.14
  5. Step 5: Solve for x
    x = 29,692,585,066.14/159,637.80
  6. Step 6: Final answer
    x = 185,999.71

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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.