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Finding the Fourth Proportional to 108,998.92, 150,413.67 and 63,681.10

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Solution

The fourth proportional to 108,998.92, 150,413.67 and 63,681.10 is: 87,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,998.92 : 150,413.67 = 63,681.10 : x
  2. Step 2: Convert to fraction form
    108,998.92/150,413.67 = 63,681.10/x
  3. Step 3: Cross multiply
    108,998.92x = 150,413.67 × 63,681.10
  4. Step 4: Simplify right side
    108,998.92x = 9,578,507,960.64
  5. Step 5: Solve for x
    x = 9,578,507,960.64/108,998.92
  6. Step 6: Final answer
    x = 87,877.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.