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Finding the Fourth Proportional to 227,615.60, 341,423.40 and 139,042.10

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Solution

The fourth proportional to 227,615.60, 341,423.40 and 139,042.10 is: 208,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,615.60 : 341,423.40 = 139,042.10 : x
  2. Step 2: Convert to fraction form
    227,615.60/341,423.40 = 139,042.10/x
  3. Step 3: Cross multiply
    227,615.60x = 341,423.40 × 139,042.10
  4. Step 4: Simplify right side
    227,615.60x = 47,472,226,525.14
  5. Step 5: Solve for x
    x = 47,472,226,525.14/227,615.60
  6. Step 6: Final answer
    x = 208,563.15

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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.