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Finding the Fourth Proportional to 248,423.40, 372,635.10 and 61,434.90

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Solution

The fourth proportional to 248,423.40, 372,635.10 and 61,434.90 is: 92,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,423.40 : 372,635.10 = 61,434.90 : x
  2. Step 2: Convert to fraction form
    248,423.40/372,635.10 = 61,434.90/x
  3. Step 3: Cross multiply
    248,423.40x = 372,635.10 × 61,434.90
  4. Step 4: Simplify right side
    248,423.40x = 22,892,800,104.99
  5. Step 5: Solve for x
    x = 22,892,800,104.99/248,423.40
  6. Step 6: Final answer
    x = 92,152.35

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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.