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Finding the Fourth Proportional to 183,426.60, 275,139.90 and 126,345.90

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Solution

The fourth proportional to 183,426.60, 275,139.90 and 126,345.90 is: 189,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,426.60 : 275,139.90 = 126,345.90 : x
  2. Step 2: Convert to fraction form
    183,426.60/275,139.90 = 126,345.90/x
  3. Step 3: Cross multiply
    183,426.60x = 275,139.90 × 126,345.90
  4. Step 4: Simplify right side
    183,426.60x = 34,762,798,291.41
  5. Step 5: Solve for x
    x = 34,762,798,291.41/183,426.60
  6. Step 6: Final answer
    x = 189,518.85

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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.