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Finding the Fourth Proportional to 69,666.60, 96,167.40 and 47,019

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Solution

The fourth proportional to 69,666.60, 96,167.40 and 47,019 is: 64,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,666.60 : 96,167.40 = 47,019 : x
  2. Step 2: Convert to fraction form
    69,666.60/96,167.40 = 47,019/x
  3. Step 3: Cross multiply
    69,666.60x = 96,167.40 × 47,019
  4. Step 4: Simplify right side
    69,666.60x = 4,521,694,980.60
  5. Step 5: Solve for x
    x = 4,521,694,980.60/69,666.60
  6. Step 6: Final answer
    x = 64,904.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.