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Finding the Fourth Proportional to 91,357.84, 126,074.71 and 51,073.80

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Solution

The fourth proportional to 91,357.84, 126,074.71 and 51,073.80 is: 70,482.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,357.84 : 126,074.71 = 51,073.80 : x
  2. Step 2: Convert to fraction form
    91,357.84/126,074.71 = 51,073.80/x
  3. Step 3: Cross multiply
    91,357.84x = 126,074.71 × 51,073.80
  4. Step 4: Simplify right side
    91,357.84x = 6,439,114,523.60
  5. Step 5: Solve for x
    x = 6,439,114,523.60/91,357.84
  6. Step 6: Final answer
    x = 70,482.35

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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.