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Finding the Fourth Proportional to 158,544.47, 218,793.52 and 86,924.34

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Solution

The fourth proportional to 158,544.47, 218,793.52 and 86,924.34 is: 119,956.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,544.47 : 218,793.52 = 86,924.34 : x
  2. Step 2: Convert to fraction form
    158,544.47/218,793.52 = 86,924.34/x
  3. Step 3: Cross multiply
    158,544.47x = 218,793.52 × 86,924.34
  4. Step 4: Simplify right side
    158,544.47x = 19,018,482,430.93
  5. Step 5: Solve for x
    x = 19,018,482,430.93/158,544.47
  6. Step 6: Final answer
    x = 119,956.77

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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.