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Finding the Fourth Proportional to 91,508.94, 126,271.71 and 51,224.94

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Solution

The fourth proportional to 91,508.94, 126,271.71 and 51,224.94 is: 70,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,508.94 : 126,271.71 = 51,224.94 : x
  2. Step 2: Convert to fraction form
    91,508.94/126,271.71 = 51,224.94/x
  3. Step 3: Cross multiply
    91,508.94x = 126,271.71 × 51,224.94
  4. Step 4: Simplify right side
    91,508.94x = 6,468,260,768.45
  5. Step 5: Solve for x
    x = 6,468,260,768.45/91,508.94
  6. Step 6: Final answer
    x = 70,684.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.