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Finding the Fourth Proportional to 474,429.30, 711,643.95 and 158,853.30

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Solution

The fourth proportional to 474,429.30, 711,643.95 and 158,853.30 is: 238,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,429.30 : 711,643.95 = 158,853.30 : x
  2. Step 2: Convert to fraction form
    474,429.30/711,643.95 = 158,853.30/x
  3. Step 3: Cross multiply
    474,429.30x = 711,643.95 × 158,853.30
  4. Step 4: Simplify right side
    474,429.30x = 113,046,989,882.54
  5. Step 5: Solve for x
    x = 113,046,989,882.54/474,429.30
  6. Step 6: Final answer
    x = 238,279.95

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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.