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Finding the Fourth Proportional to 185,403.90, 255,862.42 and 104,843.48

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Solution

The fourth proportional to 185,403.90, 255,862.42 and 104,843.48 is: 144,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,403.90 : 255,862.42 = 104,843.48 : x
  2. Step 2: Convert to fraction form
    185,403.90/255,862.42 = 104,843.48/x
  3. Step 3: Cross multiply
    185,403.90x = 255,862.42 × 104,843.48
  4. Step 4: Simplify right side
    185,403.90x = 26,825,506,514.02
  5. Step 5: Solve for x
    x = 26,825,506,514.02/185,403.90
  6. Step 6: Final answer
    x = 144,686.85

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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.