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Finding the Fourth Proportional to 92,223.80, 138,335.70 and 88,335.80

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Solution

The fourth proportional to 92,223.80, 138,335.70 and 88,335.80 is: 132,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,223.80 : 138,335.70 = 88,335.80 : x
  2. Step 2: Convert to fraction form
    92,223.80/138,335.70 = 88,335.80/x
  3. Step 3: Cross multiply
    92,223.80x = 138,335.70 × 88,335.80
  4. Step 4: Simplify right side
    92,223.80x = 12,219,994,728.06
  5. Step 5: Solve for x
    x = 12,219,994,728.06/92,223.80
  6. Step 6: Final answer
    x = 132,503.70

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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.