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Finding the Fourth Proportional to 153,262.44, 211,470.47 and 89,587.92

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Solution

The fourth proportional to 153,262.44, 211,470.47 and 89,587.92 is: 123,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,262.44 : 211,470.47 = 89,587.92 : x
  2. Step 2: Convert to fraction form
    153,262.44/211,470.47 = 89,587.92/x
  3. Step 3: Cross multiply
    153,262.44x = 211,470.47 × 89,587.92
  4. Step 4: Simplify right side
    153,262.44x = 18,945,199,548.72
  5. Step 5: Solve for x
    x = 18,945,199,548.72/153,262.44
  6. Step 6: Final answer
    x = 123,612.80

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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.