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Finding the Fourth Proportional to 46,801.80, 70,129.80 and 40,532.40

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Solution

The fourth proportional to 46,801.80, 70,129.80 and 40,532.40 is: 60,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,801.80 : 70,129.80 = 40,532.40 : x
  2. Step 2: Convert to fraction form
    46,801.80/70,129.80 = 40,532.40/x
  3. Step 3: Cross multiply
    46,801.80x = 70,129.80 × 40,532.40
  4. Step 4: Simplify right side
    46,801.80x = 2,842,529,105.52
  5. Step 5: Solve for x
    x = 2,842,529,105.52/46,801.80
  6. Step 6: Final answer
    x = 60,735.47

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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.