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Finding the Fourth Proportional to 315,232.40, 472,891.80 and 104,848.40

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Solution

The fourth proportional to 315,232.40, 472,891.80 and 104,848.40 is: 157,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,232.40 : 472,891.80 = 104,848.40 : x
  2. Step 2: Convert to fraction form
    315,232.40/472,891.80 = 104,848.40/x
  3. Step 3: Cross multiply
    315,232.40x = 472,891.80 × 104,848.40
  4. Step 4: Simplify right side
    315,232.40x = 49,581,948,603.12
  5. Step 5: Solve for x
    x = 49,581,948,603.12/315,232.40
  6. Step 6: Final answer
    x = 157,286.97

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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.