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Finding the Fourth Proportional to 153,818.40, 230,727.60 and 48,645.60

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Solution

The fourth proportional to 153,818.40, 230,727.60 and 48,645.60 is: 72,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,818.40 : 230,727.60 = 48,645.60 : x
  2. Step 2: Convert to fraction form
    153,818.40/230,727.60 = 48,645.60/x
  3. Step 3: Cross multiply
    153,818.40x = 230,727.60 × 48,645.60
  4. Step 4: Simplify right side
    153,818.40x = 11,223,882,538.56
  5. Step 5: Solve for x
    x = 11,223,882,538.56/153,818.40
  6. Step 6: Final answer
    x = 72,968.40

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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.