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Finding the Fourth Proportional to 225,962.40, 338,945.54 and 57,482.87

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Solution

The fourth proportional to 225,962.40, 338,945.54 and 57,482.87 is: 86,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,962.40 : 338,945.54 = 57,482.87 : x
  2. Step 2: Convert to fraction form
    225,962.40/338,945.54 = 57,482.87/x
  3. Step 3: Cross multiply
    225,962.40x = 338,945.54 × 57,482.87
  4. Step 4: Simplify right side
    225,962.40x = 19,483,562,412.90
  5. Step 5: Solve for x
    x = 19,483,562,412.90/225,962.40
  6. Step 6: Final answer
    x = 86,224.80

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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.