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Finding the Fourth Proportional to 59,621.51, 89,348.43 and 47,086.49

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Solution

The fourth proportional to 59,621.51, 89,348.43 and 47,086.49 is: 70,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,621.51 : 89,348.43 = 47,086.49 : x
  2. Step 2: Convert to fraction form
    59,621.51/89,348.43 = 47,086.49/x
  3. Step 3: Cross multiply
    59,621.51x = 89,348.43 × 47,086.49
  4. Step 4: Simplify right side
    59,621.51x = 4,207,103,955.71
  5. Step 5: Solve for x
    x = 4,207,103,955.71/59,621.51
  6. Step 6: Final answer
    x = 70,563.53

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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.