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Finding the Fourth Proportional to 46,814.60, 70,221.90 and 40,982.60

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Solution

The fourth proportional to 46,814.60, 70,221.90 and 40,982.60 is: 61,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,814.60 : 70,221.90 = 40,982.60 : x
  2. Step 2: Convert to fraction form
    46,814.60/70,221.90 = 40,982.60/x
  3. Step 3: Cross multiply
    46,814.60x = 70,221.90 × 40,982.60
  4. Step 4: Simplify right side
    46,814.60x = 2,877,876,038.94
  5. Step 5: Solve for x
    x = 2,877,876,038.94/46,814.60
  6. Step 6: Final answer
    x = 61,473.90

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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.