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Finding the Fourth Proportional to 92,622.79, 138,820.20 and 52,675.30

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Solution

The fourth proportional to 92,622.79, 138,820.20 and 52,675.30 is: 78,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,622.79 : 138,820.20 = 52,675.30 : x
  2. Step 2: Convert to fraction form
    92,622.79/138,820.20 = 52,675.30/x
  3. Step 3: Cross multiply
    92,622.79x = 138,820.20 × 52,675.30
  4. Step 4: Simplify right side
    92,622.79x = 7,312,395,681.06
  5. Step 5: Solve for x
    x = 7,312,395,681.06/92,622.79
  6. Step 6: Final answer
    x = 78,948.13

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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.