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Finding the Fourth Proportional to 477,018.78, 715,552.68 and 122,035.88

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Solution

The fourth proportional to 477,018.78, 715,552.68 and 122,035.88 is: 183,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,018.78 : 715,552.68 = 122,035.88 : x
  2. Step 2: Convert to fraction form
    477,018.78/715,552.68 = 122,035.88/x
  3. Step 3: Cross multiply
    477,018.78x = 715,552.68 × 122,035.88
  4. Step 4: Simplify right side
    477,018.78x = 87,323,100,990.16
  5. Step 5: Solve for x
    x = 87,323,100,990.16/477,018.78
  6. Step 6: Final answer
    x = 183,060.09

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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.