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Finding the Fourth Proportional to 124,573.80, 186,860.70 and 89,581.80

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Solution

The fourth proportional to 124,573.80, 186,860.70 and 89,581.80 is: 134,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,573.80 : 186,860.70 = 89,581.80 : x
  2. Step 2: Convert to fraction form
    124,573.80/186,860.70 = 89,581.80/x
  3. Step 3: Cross multiply
    124,573.80x = 186,860.70 × 89,581.80
  4. Step 4: Simplify right side
    124,573.80x = 16,739,317,855.26
  5. Step 5: Solve for x
    x = 16,739,317,855.26/124,573.80
  6. Step 6: Final answer
    x = 134,372.70

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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.