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Finding the Fourth Proportional to 193,818.51, 290,728.98 and 60,688.53

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Solution

The fourth proportional to 193,818.51, 290,728.98 and 60,688.53 is: 91,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,818.51 : 290,728.98 = 60,688.53 : x
  2. Step 2: Convert to fraction form
    193,818.51/290,728.98 = 60,688.53/x
  3. Step 3: Cross multiply
    193,818.51x = 290,728.98 × 60,688.53
  4. Step 4: Simplify right side
    193,818.51x = 17,643,914,424.60
  5. Step 5: Solve for x
    x = 17,643,914,424.60/193,818.51
  6. Step 6: Final answer
    x = 91,033.18

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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.