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Finding the Fourth Proportional to 70,212.66, 96,837.70 and 53,042.28

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Solution

The fourth proportional to 70,212.66, 96,837.70 and 53,042.28 is: 73,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212.66 : 96,837.70 = 53,042.28 : x
  2. Step 2: Convert to fraction form
    70,212.66/96,837.70 = 53,042.28/x
  3. Step 3: Cross multiply
    70,212.66x = 96,837.70 × 53,042.28
  4. Step 4: Simplify right side
    70,212.66x = 5,136,492,132.74
  5. Step 5: Solve for x
    x = 5,136,492,132.74/70,212.66
  6. Step 6: Final answer
    x = 73,156.21

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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.