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Finding the Fourth Proportional to 123,068.40, 169,837.95 and 69,350.46

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Solution

The fourth proportional to 123,068.40, 169,837.95 and 69,350.46 is: 95,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,068.40 : 169,837.95 = 69,350.46 : x
  2. Step 2: Convert to fraction form
    123,068.40/169,837.95 = 69,350.46/x
  3. Step 3: Cross multiply
    123,068.40x = 169,837.95 × 69,350.46
  4. Step 4: Simplify right side
    123,068.40x = 11,778,339,957.96
  5. Step 5: Solve for x
    x = 11,778,339,957.96/123,068.40
  6. Step 6: Final answer
    x = 95,705.64

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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.