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Finding the Fourth Proportional to 46,606.40, 69,909.60 and 45,310.40

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Solution

The fourth proportional to 46,606.40, 69,909.60 and 45,310.40 is: 67,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,606.40 : 69,909.60 = 45,310.40 : x
  2. Step 2: Convert to fraction form
    46,606.40/69,909.60 = 45,310.40/x
  3. Step 3: Cross multiply
    46,606.40x = 69,909.60 × 45,310.40
  4. Step 4: Simplify right side
    46,606.40x = 3,167,631,939.84
  5. Step 5: Solve for x
    x = 3,167,631,939.84/46,606.40
  6. Step 6: Final answer
    x = 67,965.60

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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.