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Finding the Fourth Proportional to 46,809.20, 70,359.60 and 45,934.40

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Solution

The fourth proportional to 46,809.20, 70,359.60 and 45,934.40 is: 69,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,809.20 : 70,359.60 = 45,934.40 : x
  2. Step 2: Convert to fraction form
    46,809.20/70,359.60 = 45,934.40/x
  3. Step 3: Cross multiply
    46,809.20x = 70,359.60 × 45,934.40
  4. Step 4: Simplify right side
    46,809.20x = 3,231,926,010.24
  5. Step 5: Solve for x
    x = 3,231,926,010.24/46,809.20
  6. Step 6: Final answer
    x = 69,044.68

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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.