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Finding the Fourth Proportional to 207,696.30, 286,622.69 and 117,034.89

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Solution

The fourth proportional to 207,696.30, 286,622.69 and 117,034.89 is: 161,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,696.30 : 286,622.69 = 117,034.89 : x
  2. Step 2: Convert to fraction form
    207,696.30/286,622.69 = 117,034.89/x
  3. Step 3: Cross multiply
    207,696.30x = 286,622.69 × 117,034.89
  4. Step 4: Simplify right side
    207,696.30x = 33,544,854,947.90
  5. Step 5: Solve for x
    x = 33,544,854,947.90/207,696.30
  6. Step 6: Final answer
    x = 161,509.16

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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.