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Finding the Fourth Proportional to 86,503.20, 119,374.04 and 46,759.20

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Solution

The fourth proportional to 86,503.20, 119,374.04 and 46,759.20 is: 64,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,503.20 : 119,374.04 = 46,759.20 : x
  2. Step 2: Convert to fraction form
    86,503.20/119,374.04 = 46,759.20/x
  3. Step 3: Cross multiply
    86,503.20x = 119,374.04 × 46,759.20
  4. Step 4: Simplify right side
    86,503.20x = 5,581,834,611.17
  5. Step 5: Solve for x
    x = 5,581,834,611.17/86,503.20
  6. Step 6: Final answer
    x = 64,527.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.