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Finding the Fourth Proportional to 132,580.16, 198,822.88 and 43,817.28

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Solution

The fourth proportional to 132,580.16, 198,822.88 and 43,817.28 is: 65,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,580.16 : 198,822.88 = 43,817.28 : x
  2. Step 2: Convert to fraction form
    132,580.16/198,822.88 = 43,817.28/x
  3. Step 3: Cross multiply
    132,580.16x = 198,822.88 × 43,817.28
  4. Step 4: Simplify right side
    132,580.16x = 8,711,877,803.37
  5. Step 5: Solve for x
    x = 8,711,877,803.37/132,580.16
  6. Step 6: Final answer
    x = 65,710.27

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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.