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Finding the Fourth Proportional to 172,894.50, 259,242.12 and 67,656.06

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Solution

The fourth proportional to 172,894.50, 259,242.12 and 67,656.06 is: 101,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,894.50 : 259,242.12 = 67,656.06 : x
  2. Step 2: Convert to fraction form
    172,894.50/259,242.12 = 67,656.06/x
  3. Step 3: Cross multiply
    172,894.50x = 259,242.12 × 67,656.06
  4. Step 4: Simplify right side
    172,894.50x = 17,539,300,425.25
  5. Step 5: Solve for x
    x = 17,539,300,425.25/172,894.50
  6. Step 6: Final answer
    x = 101,445.10

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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.