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Finding the Fourth Proportional to 70,161.86, 96,851.06 and 43,315.22

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Solution

The fourth proportional to 70,161.86, 96,851.06 and 43,315.22 is: 59,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.86 : 96,851.06 = 43,315.22 : x
  2. Step 2: Convert to fraction form
    70,161.86/96,851.06 = 43,315.22/x
  3. Step 3: Cross multiply
    70,161.86x = 96,851.06 × 43,315.22
  4. Step 4: Simplify right side
    70,161.86x = 4,195,124,971.13
  5. Step 5: Solve for x
    x = 4,195,124,971.13/70,161.86
  6. Step 6: Final answer
    x = 59,792.10

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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.