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Finding the Fourth Proportional to 212,798.66, 319,244.64 and 63,050.72

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Solution

The fourth proportional to 212,798.66, 319,244.64 and 63,050.72 is: 94,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,798.66 : 319,244.64 = 63,050.72 : x
  2. Step 2: Convert to fraction form
    212,798.66/319,244.64 = 63,050.72/x
  3. Step 3: Cross multiply
    212,798.66x = 319,244.64 × 63,050.72
  4. Step 4: Simplify right side
    212,798.66x = 20,128,604,408.14
  5. Step 5: Solve for x
    x = 20,128,604,408.14/212,798.66
  6. Step 6: Final answer
    x = 94,589.90

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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.