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Finding the Fourth Proportional to 368,556.48, 552,808.32 and 143,874.96

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Solution

The fourth proportional to 368,556.48, 552,808.32 and 143,874.96 is: 215,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,556.48 : 552,808.32 = 143,874.96 : x
  2. Step 2: Convert to fraction form
    368,556.48/552,808.32 = 143,874.96/x
  3. Step 3: Cross multiply
    368,556.48x = 552,808.32 × 143,874.96
  4. Step 4: Simplify right side
    368,556.48x = 79,535,274,927.67
  5. Step 5: Solve for x
    x = 79,535,274,927.67/368,556.48
  6. Step 6: Final answer
    x = 215,802.13

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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.