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Finding the Fourth Proportional to 269,635.34, 372,104.55 and 148,784.40

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Solution

The fourth proportional to 269,635.34, 372,104.55 and 148,784.40 is: 205,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,635.34 : 372,104.55 = 148,784.40 : x
  2. Step 2: Convert to fraction form
    269,635.34/372,104.55 = 148,784.40/x
  3. Step 3: Cross multiply
    269,635.34x = 372,104.55 × 148,784.40
  4. Step 4: Simplify right side
    269,635.34x = 55,363,351,465.10
  5. Step 5: Solve for x
    x = 55,363,351,465.10/269,635.34
  6. Step 6: Final answer
    x = 205,326.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.