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Finding the Fourth Proportional to 172,659,894.60, 258,989,841.90 and 172,659,894.60

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Solution

The fourth proportional to 172,659,894.60, 258,989,841.90 and 172,659,894.60 is: 258,989,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,659,894.60 : 258,989,841.90 = 172,659,894.60 : x
  2. Step 2: Convert to fraction form
    172,659,894.60/258,989,841.90 = 172,659,894.60/x
  3. Step 3: Cross multiply
    172,659,894.60x = 258,989,841.90 × 172,659,894.60
  4. Step 4: Simplify right side
    172,659,894.60x = 44,717,158,804,924,664
  5. Step 5: Solve for x
    x = 44,717,158,804,924,664/172,659,894.60
  6. Step 6: Final answer
    x = 258,989,841.90

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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.