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Finding the Fourth Proportional to 63,097.51, 86,897.39 and 61,719.70

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Solution

The fourth proportional to 63,097.51, 86,897.39 and 61,719.70 is: 84,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,097.51 : 86,897.39 = 61,719.70 : x
  2. Step 2: Convert to fraction form
    63,097.51/86,897.39 = 61,719.70/x
  3. Step 3: Cross multiply
    63,097.51x = 86,897.39 × 61,719.70
  4. Step 4: Simplify right side
    63,097.51x = 5,363,280,841.58
  5. Step 5: Solve for x
    x = 5,363,280,841.58/63,097.51
  6. Step 6: Final answer
    x = 84,999.88

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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.