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Finding the Fourth Proportional to 97,690.80, 146,543.40 and 35,353.20

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Solution

The fourth proportional to 97,690.80, 146,543.40 and 35,353.20 is: 53,032.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,690.80 : 146,543.40 = 35,353.20 : x
  2. Step 2: Convert to fraction form
    97,690.80/146,543.40 = 35,353.20/x
  3. Step 3: Cross multiply
    97,690.80x = 146,543.40 × 35,353.20
  4. Step 4: Simplify right side
    97,690.80x = 5,180,778,128.88
  5. Step 5: Solve for x
    x = 5,180,778,128.88/97,690.80
  6. Step 6: Final answer
    x = 53,032.41

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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.