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Finding the Fourth Proportional to 68,507.16, 102,690.67 and 34,710.57

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Solution

The fourth proportional to 68,507.16, 102,690.67 and 34,710.57 is: 52,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.16 : 102,690.67 = 34,710.57 : x
  2. Step 2: Convert to fraction form
    68,507.16/102,690.67 = 34,710.57/x
  3. Step 3: Cross multiply
    68,507.16x = 102,690.67 × 34,710.57
  4. Step 4: Simplify right side
    68,507.16x = 3,564,451,689.38
  5. Step 5: Solve for x
    x = 3,564,451,689.38/68,507.16
  6. Step 6: Final answer
    x = 52,030.35

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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.