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Finding the Fourth Proportional to 356,301.77, 534,470.97 and 90,064.55

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Solution

The fourth proportional to 356,301.77, 534,470.97 and 90,064.55 is: 135,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,301.77 : 534,470.97 = 90,064.55 : x
  2. Step 2: Convert to fraction form
    356,301.77/534,470.97 = 90,064.55/x
  3. Step 3: Cross multiply
    356,301.77x = 534,470.97 × 90,064.55
  4. Step 4: Simplify right side
    356,301.77x = 48,136,884,728.76
  5. Step 5: Solve for x
    x = 48,136,884,728.76/356,301.77
  6. Step 6: Final answer
    x = 135,101.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.