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Finding the Fourth Proportional to 269,779.84, 372,294.01 and 148,920.95

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Solution

The fourth proportional to 269,779.84, 372,294.01 and 148,920.95 is: 205,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,779.84 : 372,294.01 = 148,920.95 : x
  2. Step 2: Convert to fraction form
    269,779.84/372,294.01 = 148,920.95/x
  3. Step 3: Cross multiply
    269,779.84x = 372,294.01 × 148,920.95
  4. Step 4: Simplify right side
    269,779.84x = 55,442,377,648.51
  5. Step 5: Solve for x
    x = 55,442,377,648.51/269,779.84
  6. Step 6: Final answer
    x = 205,509.71

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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.