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Finding the Fourth Proportional to 91,323.99, 126,026.70 and 51,037.74

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Solution

The fourth proportional to 91,323.99, 126,026.70 and 51,037.74 is: 70,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,323.99 : 126,026.70 = 51,037.74 : x
  2. Step 2: Convert to fraction form
    91,323.99/126,026.70 = 51,037.74/x
  3. Step 3: Cross multiply
    91,323.99x = 126,026.70 × 51,037.74
  4. Step 4: Simplify right side
    91,323.99x = 6,432,117,947.66
  5. Step 5: Solve for x
    x = 6,432,117,947.66/91,323.99
  6. Step 6: Final answer
    x = 70,431.85

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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.