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Finding the Fourth Proportional to 74,367.96, 102,627.50 and 42,536.80

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Solution

The fourth proportional to 74,367.96, 102,627.50 and 42,536.80 is: 58,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,367.96 : 102,627.50 = 42,536.80 : x
  2. Step 2: Convert to fraction form
    74,367.96/102,627.50 = 42,536.80/x
  3. Step 3: Cross multiply
    74,367.96x = 102,627.50 × 42,536.80
  4. Step 4: Simplify right side
    74,367.96x = 4,365,445,442
  5. Step 5: Solve for x
    x = 4,365,445,442/74,367.96
  6. Step 6: Final answer
    x = 58,700.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.