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Finding the Fourth Proportional to 68,019.40, 93,829.80 and 43,444.36

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Solution

The fourth proportional to 68,019.40, 93,829.80 and 43,444.36 is: 59,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.40 : 93,829.80 = 43,444.36 : x
  2. Step 2: Convert to fraction form
    68,019.40/93,829.80 = 43,444.36/x
  3. Step 3: Cross multiply
    68,019.40x = 93,829.80 × 43,444.36
  4. Step 4: Simplify right side
    68,019.40x = 4,076,375,609.93
  5. Step 5: Solve for x
    x = 4,076,375,609.93/68,019.40
  6. Step 6: Final answer
    x = 59,929.60

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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.