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Finding the Fourth Proportional to 70,390.59, 105,584.99 and 17,083.02

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Solution

The fourth proportional to 70,390.59, 105,584.99 and 17,083.02 is: 25,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.59 : 105,584.99 = 17,083.02 : x
  2. Step 2: Convert to fraction form
    70,390.59/105,584.99 = 17,083.02/x
  3. Step 3: Cross multiply
    70,390.59x = 105,584.99 × 17,083.02
  4. Step 4: Simplify right side
    70,390.59x = 1,803,710,212.48
  5. Step 5: Solve for x
    x = 1,803,710,212.48/70,390.59
  6. Step 6: Final answer
    x = 25,624.31

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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.