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Finding the Fourth Proportional to 123,287.40, 184,952.28 and 39,046.20

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Solution

The fourth proportional to 123,287.40, 184,952.28 and 39,046.20 is: 58,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,287.40 : 184,952.28 = 39,046.20 : x
  2. Step 2: Convert to fraction form
    123,287.40/184,952.28 = 39,046.20/x
  3. Step 3: Cross multiply
    123,287.40x = 184,952.28 × 39,046.20
  4. Step 4: Simplify right side
    123,287.40x = 7,221,683,715.34
  5. Step 5: Solve for x
    x = 7,221,683,715.34/123,287.40
  6. Step 6: Final answer
    x = 58,576.01

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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.