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Finding the Fourth Proportional to 73,817.70, 103,111.50 and 73,817.70

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Solution

The fourth proportional to 73,817.70, 103,111.50 and 73,817.70 is: 103,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,817.70 : 103,111.50 = 73,817.70 : x
  2. Step 2: Convert to fraction form
    73,817.70/103,111.50 = 73,817.70/x
  3. Step 3: Cross multiply
    73,817.70x = 103,111.50 × 73,817.70
  4. Step 4: Simplify right side
    73,817.70x = 7,611,453,773.55
  5. Step 5: Solve for x
    x = 7,611,453,773.55/73,817.70
  6. Step 6: Final answer
    x = 103,111.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.