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Finding the Fourth Proportional to 65,940.84, 98,798.57 and 47,124.74

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Solution

The fourth proportional to 65,940.84, 98,798.57 and 47,124.74 is: 70,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,940.84 : 98,798.57 = 47,124.74 : x
  2. Step 2: Convert to fraction form
    65,940.84/98,798.57 = 47,124.74/x
  3. Step 3: Cross multiply
    65,940.84x = 98,798.57 × 47,124.74
  4. Step 4: Simplify right side
    65,940.84x = 4,655,856,873.37
  5. Step 5: Solve for x
    x = 4,655,856,873.37/65,940.84
  6. Step 6: Final answer
    x = 70,606.58

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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.