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Finding the Fourth Proportional to 320,590.25, 480,981.65 and 95,958.02

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Solution

The fourth proportional to 320,590.25, 480,981.65 and 95,958.02 is: 143,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,590.25 : 480,981.65 = 95,958.02 : x
  2. Step 2: Convert to fraction form
    320,590.25/480,981.65 = 95,958.02/x
  3. Step 3: Cross multiply
    320,590.25x = 480,981.65 × 95,958.02
  4. Step 4: Simplify right side
    320,590.25x = 46,154,044,625.32
  5. Step 5: Solve for x
    x = 46,154,044,625.32/320,590.25
  6. Step 6: Final answer
    x = 143,965.84

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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.