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Finding the Fourth Proportional to 160,664.40, 240,759.72 and 89,489.03

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Solution

The fourth proportional to 160,664.40, 240,759.72 and 89,489.03 is: 134,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,664.40 : 240,759.72 = 89,489.03 : x
  2. Step 2: Convert to fraction form
    160,664.40/240,759.72 = 89,489.03/x
  3. Step 3: Cross multiply
    160,664.40x = 240,759.72 × 89,489.03
  4. Step 4: Simplify right side
    160,664.40x = 21,545,352,602.07
  5. Step 5: Solve for x
    x = 21,545,352,602.07/160,664.40
  6. Step 6: Final answer
    x = 134,101.60

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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.