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Finding the Fourth Proportional to 5,754,522.80, 8,619,342.60 and 5,124,148.40

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Solution

The fourth proportional to 5,754,522.80, 8,619,342.60 and 5,124,148.40 is: 7,675,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754,522.80 : 8,619,342.60 = 5,124,148.40 : x
  2. Step 2: Convert to fraction form
    5,754,522.80/8,619,342.60 = 5,124,148.40/x
  3. Step 3: Cross multiply
    5,754,522.80x = 8,619,342.60 × 5,124,148.40
  4. Step 4: Simplify right side
    5,754,522.80x = 44,166,790,592,841.84
  5. Step 5: Solve for x
    x = 44,166,790,592,841.84/5,754,522.80
  6. Step 6: Final answer
    x = 7,675,143.90

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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.