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Finding the Fourth Proportional to 98,696.66, 136,214.37 and 56,245.46

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Solution

The fourth proportional to 98,696.66, 136,214.37 and 56,245.46 is: 77,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,696.66 : 136,214.37 = 56,245.46 : x
  2. Step 2: Convert to fraction form
    98,696.66/136,214.37 = 56,245.46/x
  3. Step 3: Cross multiply
    98,696.66x = 136,214.37 × 56,245.46
  4. Step 4: Simplify right side
    98,696.66x = 7,661,439,899.26
  5. Step 5: Solve for x
    x = 7,661,439,899.26/98,696.66
  6. Step 6: Final answer
    x = 77,626.13

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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.