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Finding the Third Proportional to 153,369.75 and 314,176.50

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Solution

The third proportional to 153,369.75 and 314,176.50 is: 643,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,369.75 : 314,176.50 = 314,176.50 : x
  2. Step 2: Convert to fraction form
    153,369.75/314,176.50 = 314,176.50/x
  3. Step 3: Cross multiply
    153,369.75x = 314,176.50 × 314,176.50
  4. Step 4: Simplify right side
    153,369.75x = 98,706,873,152.25
  5. Step 5: Solve for x
    x = 98,706,873,152.25/153,369.75
  6. Step 6: Final answer
    x = 643,587.63

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.