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Finding the Fourth Proportional to 111,657.01, 154,087.61 and 60,669.74

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Solution

The fourth proportional to 111,657.01, 154,087.61 and 60,669.74 is: 83,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,657.01 : 154,087.61 = 60,669.74 : x
  2. Step 2: Convert to fraction form
    111,657.01/154,087.61 = 60,669.74/x
  3. Step 3: Cross multiply
    111,657.01x = 154,087.61 × 60,669.74
  4. Step 4: Simplify right side
    111,657.01x = 9,348,455,235.92
  5. Step 5: Solve for x
    x = 9,348,455,235.92/111,657.01
  6. Step 6: Final answer
    x = 83,724.75

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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.