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Finding the Fourth Proportional to 356,514.74, 534,773.34 and 90,275.14

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Solution

The fourth proportional to 356,514.74, 534,773.34 and 90,275.14 is: 135,413.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,514.74 : 534,773.34 = 90,275.14 : x
  2. Step 2: Convert to fraction form
    356,514.74/534,773.34 = 90,275.14/x
  3. Step 3: Cross multiply
    356,514.74x = 534,773.34 × 90,275.14
  4. Step 4: Simplify right side
    356,514.74x = 48,276,738,136.77
  5. Step 5: Solve for x
    x = 48,276,738,136.77/356,514.74
  6. Step 6: Final answer
    x = 135,413.02

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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.