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Finding the Fourth Proportional to 162,920.80, 244,381.20 and 57,750.40

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Solution

The fourth proportional to 162,920.80, 244,381.20 and 57,750.40 is: 86,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,920.80 : 244,381.20 = 57,750.40 : x
  2. Step 2: Convert to fraction form
    162,920.80/244,381.20 = 57,750.40/x
  3. Step 3: Cross multiply
    162,920.80x = 244,381.20 × 57,750.40
  4. Step 4: Simplify right side
    162,920.80x = 14,113,112,052.48
  5. Step 5: Solve for x
    x = 14,113,112,052.48/162,920.80
  6. Step 6: Final answer
    x = 86,625.60

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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.