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Finding the Fourth Proportional to 75,237.66, 112,938.30 and 56,571.21

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Solution

The fourth proportional to 75,237.66, 112,938.30 and 56,571.21 is: 84,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,237.66 : 112,938.30 = 56,571.21 : x
  2. Step 2: Convert to fraction form
    75,237.66/112,938.30 = 56,571.21/x
  3. Step 3: Cross multiply
    75,237.66x = 112,938.30 × 56,571.21
  4. Step 4: Simplify right side
    75,237.66x = 6,389,056,286.34
  5. Step 5: Solve for x
    x = 6,389,056,286.34/75,237.66
  6. Step 6: Final answer
    x = 84,918.33

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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.