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Finding the Fourth Proportional to 70,156.44, 96,798.54 and 45,039.96

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Solution

The fourth proportional to 70,156.44, 96,798.54 and 45,039.96 is: 62,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,156.44 : 96,798.54 = 45,039.96 : x
  2. Step 2: Convert to fraction form
    70,156.44/96,798.54 = 45,039.96/x
  3. Step 3: Cross multiply
    70,156.44x = 96,798.54 × 45,039.96
  4. Step 4: Simplify right side
    70,156.44x = 4,359,802,369.66
  5. Step 5: Solve for x
    x = 4,359,802,369.66/70,156.44
  6. Step 6: Final answer
    x = 62,144.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.