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Finding the Fourth Proportional to 357,564.78, 536,348.39 and 121,073.54

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Solution

The fourth proportional to 357,564.78, 536,348.39 and 121,073.54 is: 181,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,564.78 : 536,348.39 = 121,073.54 : x
  2. Step 2: Convert to fraction form
    357,564.78/536,348.39 = 121,073.54/x
  3. Step 3: Cross multiply
    357,564.78x = 536,348.39 × 121,073.54
  4. Step 4: Simplify right side
    357,564.78x = 64,937,594,963.49
  5. Step 5: Solve for x
    x = 64,937,594,963.49/357,564.78
  6. Step 6: Final answer
    x = 181,610.71

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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.