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Finding the Fourth Proportional to 213,883.90, 295,139.52 and 127,825.86

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Solution

The fourth proportional to 213,883.90, 295,139.52 and 127,825.86 is: 176,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,883.90 : 295,139.52 = 127,825.86 : x
  2. Step 2: Convert to fraction form
    213,883.90/295,139.52 = 127,825.86/x
  3. Step 3: Cross multiply
    213,883.90x = 295,139.52 × 127,825.86
  4. Step 4: Simplify right side
    213,883.90x = 37,726,462,963.99
  5. Step 5: Solve for x
    x = 37,726,462,963.99/213,883.90
  6. Step 6: Final answer
    x = 176,387.58

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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.