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Finding the Fourth Proportional to 153,959.20, 231,111.60 and 119,053.60

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Solution

The fourth proportional to 153,959.20, 231,111.60 and 119,053.60 is: 178,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,959.20 : 231,111.60 = 119,053.60 : x
  2. Step 2: Convert to fraction form
    153,959.20/231,111.60 = 119,053.60/x
  3. Step 3: Cross multiply
    153,959.20x = 231,111.60 × 119,053.60
  4. Step 4: Simplify right side
    153,959.20x = 27,514,667,981.76
  5. Step 5: Solve for x
    x = 27,514,667,981.76/153,959.20
  6. Step 6: Final answer
    x = 178,714.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.