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Finding the Fourth Proportional to 124,595.80, 186,936.90 and 54,525.40

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Solution

The fourth proportional to 124,595.80, 186,936.90 and 54,525.40 is: 81,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,595.80 : 186,936.90 = 54,525.40 : x
  2. Step 2: Convert to fraction form
    124,595.80/186,936.90 = 54,525.40/x
  3. Step 3: Cross multiply
    124,595.80x = 186,936.90 × 54,525.40
  4. Step 4: Simplify right side
    124,595.80x = 10,192,809,247.26
  5. Step 5: Solve for x
    x = 10,192,809,247.26/124,595.80
  6. Step 6: Final answer
    x = 81,807.01

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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.