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Finding the Fourth Proportional to 153,508.03, 211,837.89 and 85,524.91

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Solution

The fourth proportional to 153,508.03, 211,837.89 and 85,524.91 is: 118,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,508.03 : 211,837.89 = 85,524.91 : x
  2. Step 2: Convert to fraction form
    153,508.03/211,837.89 = 85,524.91/x
  3. Step 3: Cross multiply
    153,508.03x = 211,837.89 × 85,524.91
  4. Step 4: Simplify right side
    153,508.03x = 18,117,416,476.84
  5. Step 5: Solve for x
    x = 18,117,416,476.84/153,508.03
  6. Step 6: Final answer
    x = 118,022.60

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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.