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Finding the Fourth Proportional to 75,293.65, 103,908.50 and 45,073.12

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Solution

The fourth proportional to 75,293.65, 103,908.50 and 45,073.12 is: 62,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,293.65 : 103,908.50 = 45,073.12 : x
  2. Step 2: Convert to fraction form
    75,293.65/103,908.50 = 45,073.12/x
  3. Step 3: Cross multiply
    75,293.65x = 103,908.50 × 45,073.12
  4. Step 4: Simplify right side
    75,293.65x = 4,683,480,289.52
  5. Step 5: Solve for x
    x = 4,683,480,289.52/75,293.65
  6. Step 6: Final answer
    x = 62,202.86

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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.