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Finding the Fourth Proportional to 66,868,313.30, 100,143,037.65 and 66,868,313.30

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Solution

The fourth proportional to 66,868,313.30, 100,143,037.65 and 66,868,313.30 is: 100,143,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,868,313.30 : 100,143,037.65 = 66,868,313.30 : x
  2. Step 2: Convert to fraction form
    66,868,313.30/100,143,037.65 = 66,868,313.30/x
  3. Step 3: Cross multiply
    66,868,313.30x = 100,143,037.65 × 66,868,313.30
  4. Step 4: Simplify right side
    66,868,313.30x = 6,696,396,016,393,896
  5. Step 5: Solve for x
    x = 6,696,396,016,393,896/66,868,313.30
  6. Step 6: Final answer
    x = 100,143,037.65

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1.5x scale

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.