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Finding the Fourth Proportional to 269,810.78, 372,339.51 and 148,952.15

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Solution

The fourth proportional to 269,810.78, 372,339.51 and 148,952.15 is: 205,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,810.78 : 372,339.51 = 148,952.15 : x
  2. Step 2: Convert to fraction form
    269,810.78/372,339.51 = 148,952.15/x
  3. Step 3: Cross multiply
    269,810.78x = 372,339.51 × 148,952.15
  4. Step 4: Simplify right side
    269,810.78x = 55,460,770,544.45
  5. Step 5: Solve for x
    x = 55,460,770,544.45/269,810.78
  6. Step 6: Final answer
    x = 205,554.32

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1.5x scale

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.