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Finding the Fourth Proportional to 78,494.76, 117,749.07 and 25,192.17

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Solution

The fourth proportional to 78,494.76, 117,749.07 and 25,192.17 is: 37,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,494.76 : 117,749.07 = 25,192.17 : x
  2. Step 2: Convert to fraction form
    78,494.76/117,749.07 = 25,192.17/x
  3. Step 3: Cross multiply
    78,494.76x = 117,749.07 × 25,192.17
  4. Step 4: Simplify right side
    78,494.76x = 2,966,354,588.78
  5. Step 5: Solve for x
    x = 2,966,354,588.78/78,494.76
  6. Step 6: Final answer
    x = 37,790.48

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1.5x scale

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.