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Finding the Fourth Proportional to 193,598.60, 290,412.30 and 68,923.40

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Solution

The fourth proportional to 193,598.60, 290,412.30 and 68,923.40 is: 103,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,598.60 : 290,412.30 = 68,923.40 : x
  2. Step 2: Convert to fraction form
    193,598.60/290,412.30 = 68,923.40/x
  3. Step 3: Cross multiply
    193,598.60x = 290,412.30 × 68,923.40
  4. Step 4: Simplify right side
    193,598.60x = 20,016,203,117.82
  5. Step 5: Solve for x
    x = 20,016,203,117.82/193,598.60
  6. Step 6: Final answer
    x = 103,390.23

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1.5x scale

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.