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Finding the Fourth Proportional to 125,054.62, 172,575.38 and 68,466

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Solution

The fourth proportional to 125,054.62, 172,575.38 and 68,466 is: 94,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,054.62 : 172,575.38 = 68,466 : x
  2. Step 2: Convert to fraction form
    125,054.62/172,575.38 = 68,466/x
  3. Step 3: Cross multiply
    125,054.62x = 172,575.38 × 68,466
  4. Step 4: Simplify right side
    125,054.62x = 11,815,545,967.08
  5. Step 5: Solve for x
    x = 11,815,545,967.08/125,054.62
  6. Step 6: Final answer
    x = 94,483.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.