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Finding the Fourth Proportional to 153,497.60, 211,833.23 and 85,514.54

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Solution

The fourth proportional to 153,497.60, 211,833.23 and 85,514.54 is: 118,013.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,497.60 : 211,833.23 = 85,514.54 : x
  2. Step 2: Convert to fraction form
    153,497.60/211,833.23 = 85,514.54/x
  3. Step 3: Cross multiply
    153,497.60x = 211,833.23 × 85,514.54
  4. Step 4: Simplify right side
    153,497.60x = 18,114,819,733.43
  5. Step 5: Solve for x
    x = 18,114,819,733.43/153,497.60
  6. Step 6: Final answer
    x = 118,013.70

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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.