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Finding the Fourth Proportional to 66,502.80, 99,802.80 and 46,819.80

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Solution

The fourth proportional to 66,502.80, 99,802.80 and 46,819.80 is: 70,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502.80 : 99,802.80 = 46,819.80 : x
  2. Step 2: Convert to fraction form
    66,502.80/99,802.80 = 46,819.80/x
  3. Step 3: Cross multiply
    66,502.80x = 99,802.80 × 46,819.80
  4. Step 4: Simplify right side
    66,502.80x = 4,672,747,135.44
  5. Step 5: Solve for x
    x = 4,672,747,135.44/66,502.80
  6. Step 6: Final answer
    x = 70,263.92

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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.