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Finding the Fourth Proportional to 58,401.40, 87,629.80 and 30,306.50

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Solution

The fourth proportional to 58,401.40, 87,629.80 and 30,306.50 is: 45,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,401.40 : 87,629.80 = 30,306.50 : x
  2. Step 2: Convert to fraction form
    58,401.40/87,629.80 = 30,306.50/x
  3. Step 3: Cross multiply
    58,401.40x = 87,629.80 × 30,306.50
  4. Step 4: Simplify right side
    58,401.40x = 2,655,752,533.70
  5. Step 5: Solve for x
    x = 2,655,752,533.70/58,401.40
  6. Step 6: Final answer
    x = 45,474.12

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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.