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Finding the Fourth Proportional to 134,681.70, 201,994.20 and 68,059.20

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Solution

The fourth proportional to 134,681.70, 201,994.20 and 68,059.20 is: 102,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,681.70 : 201,994.20 = 68,059.20 : x
  2. Step 2: Convert to fraction form
    134,681.70/201,994.20 = 68,059.20/x
  3. Step 3: Cross multiply
    134,681.70x = 201,994.20 × 68,059.20
  4. Step 4: Simplify right side
    134,681.70x = 13,747,563,656.64
  5. Step 5: Solve for x
    x = 13,747,563,656.64/134,681.70
  6. Step 6: Final answer
    x = 102,074.47

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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.