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Finding the Fourth Proportional to 78,906.56, 118,358.64 and 23,502.56

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Solution

The fourth proportional to 78,906.56, 118,358.64 and 23,502.56 is: 35,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,906.56 : 118,358.64 = 23,502.56 : x
  2. Step 2: Convert to fraction form
    78,906.56/118,358.64 = 23,502.56/x
  3. Step 3: Cross multiply
    78,906.56x = 118,358.64 × 23,502.56
  4. Step 4: Simplify right side
    78,906.56x = 2,781,731,038.12
  5. Step 5: Solve for x
    x = 2,781,731,038.12/78,906.56
  6. Step 6: Final answer
    x = 35,253.48

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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.