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Finding the Fourth Proportional to 86,043.46, 118,783.17 and 53,796.01

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Solution

The fourth proportional to 86,043.46, 118,783.17 and 53,796.01 is: 74,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,043.46 : 118,783.17 = 53,796.01 : x
  2. Step 2: Convert to fraction form
    86,043.46/118,783.17 = 53,796.01/x
  3. Step 3: Cross multiply
    86,043.46x = 118,783.17 × 53,796.01
  4. Step 4: Simplify right side
    86,043.46x = 6,390,060,601.15
  5. Step 5: Solve for x
    x = 6,390,060,601.15/86,043.46
  6. Step 6: Final answer
    x = 74,265.50

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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.