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Finding the Fourth Proportional to 158,389.65, 218,577.71 and 94,727.45

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Solution

The fourth proportional to 158,389.65, 218,577.71 and 94,727.45 is: 130,723.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,389.65 : 218,577.71 = 94,727.45 : x
  2. Step 2: Convert to fraction form
    158,389.65/218,577.71 = 94,727.45/x
  3. Step 3: Cross multiply
    158,389.65x = 218,577.71 × 94,727.45
  4. Step 4: Simplify right side
    158,389.65x = 20,705,307,528.61
  5. Step 5: Solve for x
    x = 20,705,307,528.61/158,389.65
  6. Step 6: Final answer
    x = 130,723.87

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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.