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Finding the Third Proportional to 78,548 and 117,565.50

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Solution

The third proportional to 78,548 and 117,565.50 is: 175,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,548 : 117,565.50 = 117,565.50 : x
  2. Step 2: Convert to fraction form
    78,548/117,565.50 = 117,565.50/x
  3. Step 3: Cross multiply
    78,548x = 117,565.50 × 117,565.50
  4. Step 4: Simplify right side
    78,548x = 13,821,646,790.25
  5. Step 5: Solve for x
    x = 13,821,646,790.25/78,548
  6. Step 6: Final answer
    x = 175,964.34

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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.