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Finding the Fourth Proportional to 193,152.40, 289,728.60 and 185,376.40

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Solution

The fourth proportional to 193,152.40, 289,728.60 and 185,376.40 is: 278,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,152.40 : 289,728.60 = 185,376.40 : x
  2. Step 2: Convert to fraction form
    193,152.40/289,728.60 = 185,376.40/x
  3. Step 3: Cross multiply
    193,152.40x = 289,728.60 × 185,376.40
  4. Step 4: Simplify right side
    193,152.40x = 53,708,844,845.04
  5. Step 5: Solve for x
    x = 53,708,844,845.04/193,152.40
  6. Step 6: Final answer
    x = 278,064.60

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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.