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Finding the Fourth Proportional to 170,706.64, 235,603.92 and 99,146.56

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Solution

The fourth proportional to 170,706.64, 235,603.92 and 99,146.56 is: 136,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,706.64 : 235,603.92 = 99,146.56 : x
  2. Step 2: Convert to fraction form
    170,706.64/235,603.92 = 99,146.56/x
  3. Step 3: Cross multiply
    170,706.64x = 235,603.92 × 99,146.56
  4. Step 4: Simplify right side
    170,706.64x = 23,359,318,190.52
  5. Step 5: Solve for x
    x = 23,359,318,190.52/170,706.64
  6. Step 6: Final answer
    x = 136,838.95

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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.