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Finding the Third Proportional to 155,427.19 and 247,152.38

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Solution

The third proportional to 155,427.19 and 247,152.38 is: 393,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,427.19 : 247,152.38 = 247,152.38 : x
  2. Step 2: Convert to fraction form
    155,427.19/247,152.38 = 247,152.38/x
  3. Step 3: Cross multiply
    155,427.19x = 247,152.38 × 247,152.38
  4. Step 4: Simplify right side
    155,427.19x = 61,084,296,468.14
  5. Step 5: Solve for x
    x = 61,084,296,468.14/155,427.19
  6. Step 6: Final answer
    x = 393,009.08

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.