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Finding the Fourth Proportional to 141,903.93, 212,856.74 and 42,064.97

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Solution

The fourth proportional to 141,903.93, 212,856.74 and 42,064.97 is: 63,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,903.93 : 212,856.74 = 42,064.97 : x
  2. Step 2: Convert to fraction form
    141,903.93/212,856.74 = 42,064.97/x
  3. Step 3: Cross multiply
    141,903.93x = 212,856.74 × 42,064.97
  4. Step 4: Simplify right side
    141,903.93x = 8,953,812,344.54
  5. Step 5: Solve for x
    x = 8,953,812,344.54/141,903.93
  6. Step 6: Final answer
    x = 63,097.71

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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.