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Finding the Fourth Proportional to 302,593.10, 453,889.65 and 103,138.70

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Solution

The fourth proportional to 302,593.10, 453,889.65 and 103,138.70 is: 154,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,593.10 : 453,889.65 = 103,138.70 : x
  2. Step 2: Convert to fraction form
    302,593.10/453,889.65 = 103,138.70/x
  3. Step 3: Cross multiply
    302,593.10x = 453,889.65 × 103,138.70
  4. Step 4: Simplify right side
    302,593.10x = 46,813,588,444.46
  5. Step 5: Solve for x
    x = 46,813,588,444.46/302,593.10
  6. Step 6: Final answer
    x = 154,708.05

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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.