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Finding the Fourth Proportional to 164,705.70, 247,058.55 and 148,959.30

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Solution

The fourth proportional to 164,705.70, 247,058.55 and 148,959.30 is: 223,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,705.70 : 247,058.55 = 148,959.30 : x
  2. Step 2: Convert to fraction form
    164,705.70/247,058.55 = 148,959.30/x
  3. Step 3: Cross multiply
    164,705.70x = 247,058.55 × 148,959.30
  4. Step 4: Simplify right side
    164,705.70x = 36,801,668,667.02
  5. Step 5: Solve for x
    x = 36,801,668,667.02/164,705.70
  6. Step 6: Final answer
    x = 223,438.95

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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.