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Finding the Fourth Proportional to 125,672, 173,379.28 and 93,044.12

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Solution

The fourth proportional to 125,672, 173,379.28 and 93,044.12 is: 128,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,672 : 173,379.28 = 93,044.12 : x
  2. Step 2: Convert to fraction form
    125,672/173,379.28 = 93,044.12/x
  3. Step 3: Cross multiply
    125,672x = 173,379.28 × 93,044.12
  4. Step 4: Simplify right side
    125,672x = 16,131,922,533.83
  5. Step 5: Solve for x
    x = 16,131,922,533.83/125,672
  6. Step 6: Final answer
    x = 128,365.29

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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.