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Finding the Fourth Proportional to 340,540.92, 510,281.64 and 130,064.04

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Solution

The fourth proportional to 340,540.92, 510,281.64 and 130,064.04 is: 194,893.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,540.92 : 510,281.64 = 130,064.04 : x
  2. Step 2: Convert to fraction form
    340,540.92/510,281.64 = 130,064.04/x
  3. Step 3: Cross multiply
    340,540.92x = 510,281.64 × 130,064.04
  4. Step 4: Simplify right side
    340,540.92x = 66,369,291,636.23
  5. Step 5: Solve for x
    x = 66,369,291,636.23/340,540.92
  6. Step 6: Final answer
    x = 194,893.73

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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.