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Finding the Fourth Proportional to 245,423.44, 368,143.40 and 67,915.59

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Solution

The fourth proportional to 245,423.44, 368,143.40 and 67,915.59 is: 101,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.44 : 368,143.40 = 67,915.59 : x
  2. Step 2: Convert to fraction form
    245,423.44/368,143.40 = 67,915.59/x
  3. Step 3: Cross multiply
    245,423.44x = 368,143.40 × 67,915.59
  4. Step 4: Simplify right side
    245,423.44x = 25,002,676,215.61
  5. Step 5: Solve for x
    x = 25,002,676,215.61/245,423.44
  6. Step 6: Final answer
    x = 101,875.67

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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.