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Finding the Fourth Proportional to 250,413.78, 375,621.28 and 72,925.10

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Solution

The fourth proportional to 250,413.78, 375,621.28 and 72,925.10 is: 109,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,413.78 : 375,621.28 = 72,925.10 : x
  2. Step 2: Convert to fraction form
    250,413.78/375,621.28 = 72,925.10/x
  3. Step 3: Cross multiply
    250,413.78x = 375,621.28 × 72,925.10
  4. Step 4: Simplify right side
    250,413.78x = 27,392,219,406.13
  5. Step 5: Solve for x
    x = 27,392,219,406.13/250,413.78
  6. Step 6: Final answer
    x = 109,387.83

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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.