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Finding the Fourth Proportional to 153,536.82, 211,861.71 and 89,005.74

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Solution

The fourth proportional to 153,536.82, 211,861.71 and 89,005.74 is: 122,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,536.82 : 211,861.71 = 89,005.74 : x
  2. Step 2: Convert to fraction form
    153,536.82/211,861.71 = 89,005.74/x
  3. Step 3: Cross multiply
    153,536.82x = 211,861.71 × 89,005.74
  4. Step 4: Simplify right side
    153,536.82x = 18,856,908,276.22
  5. Step 5: Solve for x
    x = 18,856,908,276.22/153,536.82
  6. Step 6: Final answer
    x = 122,816.85

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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.