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Finding the Fourth Proportional to 248,096.72, 372,100.64 and 65,728.76

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Solution

The fourth proportional to 248,096.72, 372,100.64 and 65,728.76 is: 98,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,096.72 : 372,100.64 = 65,728.76 : x
  2. Step 2: Convert to fraction form
    248,096.72/372,100.64 = 65,728.76/x
  3. Step 3: Cross multiply
    248,096.72x = 372,100.64 × 65,728.76
  4. Step 4: Simplify right side
    248,096.72x = 24,457,711,473.26
  5. Step 5: Solve for x
    x = 24,457,711,473.26/248,096.72
  6. Step 6: Final answer
    x = 98,581.36

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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.