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Finding the Fourth Proportional to 118,547.78, 163,755.69 and 94,843.94

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Solution

The fourth proportional to 118,547.78, 163,755.69 and 94,843.94 is: 131,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,547.78 : 163,755.69 = 94,843.94 : x
  2. Step 2: Convert to fraction form
    118,547.78/163,755.69 = 94,843.94/x
  3. Step 3: Cross multiply
    118,547.78x = 163,755.69 × 94,843.94
  4. Step 4: Simplify right side
    118,547.78x = 15,531,234,837.02
  5. Step 5: Solve for x
    x = 15,531,234,837.02/118,547.78
  6. Step 6: Final answer
    x = 131,012.45

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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.