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Finding the Fourth Proportional to 98,547.96, 135,992.82 and 56,098.28

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Solution

The fourth proportional to 98,547.96, 135,992.82 and 56,098.28 is: 77,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,547.96 : 135,992.82 = 56,098.28 : x
  2. Step 2: Convert to fraction form
    98,547.96/135,992.82 = 56,098.28/x
  3. Step 3: Cross multiply
    98,547.96x = 135,992.82 × 56,098.28
  4. Step 4: Simplify right side
    98,547.96x = 7,628,963,294.35
  5. Step 5: Solve for x
    x = 7,628,963,294.35/98,547.96
  6. Step 6: Final answer
    x = 77,413.71

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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.