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Finding the Fourth Proportional to 92,386.68, 138,696.66 and 52,979.64

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Solution

The fourth proportional to 92,386.68, 138,696.66 and 52,979.64 is: 79,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,386.68 : 138,696.66 = 52,979.64 : x
  2. Step 2: Convert to fraction form
    92,386.68/138,696.66 = 52,979.64/x
  3. Step 3: Cross multiply
    92,386.68x = 138,696.66 × 52,979.64
  4. Step 4: Simplify right side
    92,386.68x = 7,348,099,116.00
  5. Step 5: Solve for x
    x = 7,348,099,116.00/92,386.68
  6. Step 6: Final answer
    x = 79,536.35

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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.