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Finding the Fourth Proportional to 58,784.60, 88,176.90 and 40,122.20

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Solution

The fourth proportional to 58,784.60, 88,176.90 and 40,122.20 is: 60,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,784.60 : 88,176.90 = 40,122.20 : x
  2. Step 2: Convert to fraction form
    58,784.60/88,176.90 = 40,122.20/x
  3. Step 3: Cross multiply
    58,784.60x = 88,176.90 × 40,122.20
  4. Step 4: Simplify right side
    58,784.60x = 3,537,851,217.18
  5. Step 5: Solve for x
    x = 3,537,851,217.18/58,784.60
  6. Step 6: Final answer
    x = 60,183.30

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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.