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Finding the Fourth Proportional to 60,800.42, 91,339.02 and 43,985.29

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Solution

The fourth proportional to 60,800.42, 91,339.02 and 43,985.29 is: 66,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,800.42 : 91,339.02 = 43,985.29 : x
  2. Step 2: Convert to fraction form
    60,800.42/91,339.02 = 43,985.29/x
  3. Step 3: Cross multiply
    60,800.42x = 91,339.02 × 43,985.29
  4. Step 4: Simplify right side
    60,800.42x = 4,017,573,283.02
  5. Step 5: Solve for x
    x = 4,017,573,283.02/60,800.42
  6. Step 6: Final answer
    x = 66,078.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.