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Finding the Fourth Proportional to 368,140.39, 552,222.64 and 101,878.61

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Solution

The fourth proportional to 368,140.39, 552,222.64 and 101,878.61 is: 152,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,140.39 : 552,222.64 = 101,878.61 : x
  2. Step 2: Convert to fraction form
    368,140.39/552,222.64 = 101,878.61/x
  3. Step 3: Cross multiply
    368,140.39x = 552,222.64 × 101,878.61
  4. Step 4: Simplify right side
    368,140.39x = 56,259,673,083.78
  5. Step 5: Solve for x
    x = 56,259,673,083.78/368,140.39
  6. Step 6: Final answer
    x = 152,821.25

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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.