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Finding the Fourth Proportional to 67,812.90, 101,719.35 and 46,817.70

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Solution

The fourth proportional to 67,812.90, 101,719.35 and 46,817.70 is: 70,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,812.90 : 101,719.35 = 46,817.70 : x
  2. Step 2: Convert to fraction form
    67,812.90/101,719.35 = 46,817.70/x
  3. Step 3: Cross multiply
    67,812.90x = 101,719.35 × 46,817.70
  4. Step 4: Simplify right side
    67,812.90x = 4,762,266,012.50
  5. Step 5: Solve for x
    x = 4,762,266,012.50/67,812.90
  6. Step 6: Final answer
    x = 70,226.55

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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.