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Finding the Fourth Proportional to 153,471.08, 211,790.48 and 88,952.76

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Solution

The fourth proportional to 153,471.08, 211,790.48 and 88,952.76 is: 122,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,471.08 : 211,790.48 = 88,952.76 : x
  2. Step 2: Convert to fraction form
    153,471.08/211,790.48 = 88,952.76/x
  3. Step 3: Cross multiply
    153,471.08x = 211,790.48 × 88,952.76
  4. Step 4: Simplify right side
    153,471.08x = 18,839,347,737.72
  5. Step 5: Solve for x
    x = 18,839,347,737.72/153,471.08
  6. Step 6: Final answer
    x = 122,755.03

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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.