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Finding the Third Proportional to 112,209 and 163,972.50

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Solution

The third proportional to 112,209 and 163,972.50 is: 239,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,209 : 163,972.50 = 163,972.50 : x
  2. Step 2: Convert to fraction form
    112,209/163,972.50 = 163,972.50/x
  3. Step 3: Cross multiply
    112,209x = 163,972.50 × 163,972.50
  4. Step 4: Simplify right side
    112,209x = 26,886,980,756.25
  5. Step 5: Solve for x
    x = 26,886,980,756.25/112,209
  6. Step 6: Final answer
    x = 239,615.19

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.