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Finding the Fourth Proportional to 76,394.52, 113,938.74 and 67,095.72

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Solution

The fourth proportional to 76,394.52, 113,938.74 and 67,095.72 is: 100,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,394.52 : 113,938.74 = 67,095.72 : x
  2. Step 2: Convert to fraction form
    76,394.52/113,938.74 = 67,095.72/x
  3. Step 3: Cross multiply
    76,394.52x = 113,938.74 × 67,095.72
  4. Step 4: Simplify right side
    76,394.52x = 7,644,801,796.19
  5. Step 5: Solve for x
    x = 7,644,801,796.19/76,394.52
  6. Step 6: Final answer
    x = 100,070.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.