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Finding the Fourth Proportional to 141,967.01, 212,904.42 and 47,171.74

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Solution

The fourth proportional to 141,967.01, 212,904.42 and 47,171.74 is: 70,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,967.01 : 212,904.42 = 47,171.74 : x
  2. Step 2: Convert to fraction form
    141,967.01/212,904.42 = 47,171.74/x
  3. Step 3: Cross multiply
    141,967.01x = 212,904.42 × 47,171.74
  4. Step 4: Simplify right side
    141,967.01x = 10,043,072,631.94
  5. Step 5: Solve for x
    x = 10,043,072,631.94/141,967.01
  6. Step 6: Final answer
    x = 70,742.30

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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.