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Finding the Fourth Proportional to 132,666.48, 198,866.76 and 61,639.08

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Solution

The fourth proportional to 132,666.48, 198,866.76 and 61,639.08 is: 92,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,666.48 : 198,866.76 = 61,639.08 : x
  2. Step 2: Convert to fraction form
    132,666.48/198,866.76 = 61,639.08/x
  3. Step 3: Cross multiply
    132,666.48x = 198,866.76 × 61,639.08
  4. Step 4: Simplify right side
    132,666.48x = 12,257,964,128.98
  5. Step 5: Solve for x
    x = 12,257,964,128.98/132,666.48
  6. Step 6: Final answer
    x = 92,396.84

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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.