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Finding the Fourth Proportional to 193,482.79, 290,336.25 and 81,153.01

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Solution

The fourth proportional to 193,482.79, 290,336.25 and 81,153.01 is: 121,776.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,482.79 : 290,336.25 = 81,153.01 : x
  2. Step 2: Convert to fraction form
    193,482.79/290,336.25 = 81,153.01/x
  3. Step 3: Cross multiply
    193,482.79x = 290,336.25 × 81,153.01
  4. Step 4: Simplify right side
    193,482.79x = 23,561,660,599.61
  5. Step 5: Solve for x
    x = 23,561,660,599.61/193,482.79
  6. Step 6: Final answer
    x = 121,776.52

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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.