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Finding the Fourth Proportional to 125,455.44, 173,127.78 and 68,095.86

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Solution

The fourth proportional to 125,455.44, 173,127.78 and 68,095.86 is: 93,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,455.44 : 173,127.78 = 68,095.86 : x
  2. Step 2: Convert to fraction form
    125,455.44/173,127.78 = 68,095.86/x
  3. Step 3: Cross multiply
    125,455.44x = 173,127.78 × 68,095.86
  4. Step 4: Simplify right side
    125,455.44x = 11,789,285,068.99
  5. Step 5: Solve for x
    x = 11,789,285,068.99/125,455.44
  6. Step 6: Final answer
    x = 93,971.89

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1.5x scale

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.