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Finding the Fourth Proportional to 91,687.48, 137,533.14 and 29,357.80

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Solution

The fourth proportional to 91,687.48, 137,533.14 and 29,357.80 is: 44,037.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,687.48 : 137,533.14 = 29,357.80 : x
  2. Step 2: Convert to fraction form
    91,687.48/137,533.14 = 29,357.80/x
  3. Step 3: Cross multiply
    91,687.48x = 137,533.14 × 29,357.80
  4. Step 4: Simplify right side
    91,687.48x = 4,037,670,417.49
  5. Step 5: Solve for x
    x = 4,037,670,417.49/91,687.48
  6. Step 6: Final answer
    x = 44,037.31

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1.5x scale

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.