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Finding the Fourth Proportional to 366,663.61, 549,995.87 and 100,426.43

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Solution

The fourth proportional to 366,663.61, 549,995.87 and 100,426.43 is: 150,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,663.61 : 549,995.87 = 100,426.43 : x
  2. Step 2: Convert to fraction form
    366,663.61/549,995.87 = 100,426.43/x
  3. Step 3: Cross multiply
    366,663.61x = 549,995.87 × 100,426.43
  4. Step 4: Simplify right side
    366,663.61x = 55,234,123,364.90
  5. Step 5: Solve for x
    x = 55,234,123,364.90/366,663.61
  6. Step 6: Final answer
    x = 150,639.77

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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.