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Finding the Fourth Proportional to 75,059.48, 103,462.98 and 59,118.68

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Solution

The fourth proportional to 75,059.48, 103,462.98 and 59,118.68 is: 81,489.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,059.48 : 103,462.98 = 59,118.68 : x
  2. Step 2: Convert to fraction form
    75,059.48/103,462.98 = 59,118.68/x
  3. Step 3: Cross multiply
    75,059.48x = 103,462.98 × 59,118.68
  4. Step 4: Simplify right side
    75,059.48x = 6,116,594,806.47
  5. Step 5: Solve for x
    x = 6,116,594,806.47/75,059.48
  6. Step 6: Final answer
    x = 81,489.97

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1.5x scale

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.