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Finding the Fourth Proportional to 78,851.93, 108,812.62 and 43,041.93

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Solution

The fourth proportional to 78,851.93, 108,812.62 and 43,041.93 is: 59,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.93 : 108,812.62 = 43,041.93 : x
  2. Step 2: Convert to fraction form
    78,851.93/108,812.62 = 43,041.93/x
  3. Step 3: Cross multiply
    78,851.93x = 108,812.62 × 43,041.93
  4. Step 4: Simplify right side
    78,851.93x = 4,683,505,173.16
  5. Step 5: Solve for x
    x = 4,683,505,173.16/78,851.93
  6. Step 6: Final answer
    x = 59,396.20

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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.