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Finding the Fourth Proportional to 269,554.61, 371,984.31 and 148,703.42

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Solution

The fourth proportional to 269,554.61, 371,984.31 and 148,703.42 is: 205,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,554.61 : 371,984.31 = 148,703.42 : x
  2. Step 2: Convert to fraction form
    269,554.61/371,984.31 = 148,703.42/x
  3. Step 3: Cross multiply
    269,554.61x = 371,984.31 × 148,703.42
  4. Step 4: Simplify right side
    269,554.61x = 55,315,337,223.42
  5. Step 5: Solve for x
    x = 55,315,337,223.42/269,554.61
  6. Step 6: Final answer
    x = 205,210.14

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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.