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Finding the Fourth Proportional to 320,696.90, 480,909.96 and 96,089.24

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Solution

The fourth proportional to 320,696.90, 480,909.96 and 96,089.24 is: 144,093.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,696.90 : 480,909.96 = 96,089.24 : x
  2. Step 2: Convert to fraction form
    320,696.90/480,909.96 = 96,089.24/x
  3. Step 3: Cross multiply
    320,696.90x = 480,909.96 × 96,089.24
  4. Step 4: Simplify right side
    320,696.90x = 46,210,272,564.83
  5. Step 5: Solve for x
    x = 46,210,272,564.83/320,696.90
  6. Step 6: Final answer
    x = 144,093.29

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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.