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Finding the Fourth Proportional to 125,904.30, 188,856.45 and 97,363.95

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Solution

The fourth proportional to 125,904.30, 188,856.45 and 97,363.95 is: 146,045.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,904.30 : 188,856.45 = 97,363.95 : x
  2. Step 2: Convert to fraction form
    125,904.30/188,856.45 = 97,363.95/x
  3. Step 3: Cross multiply
    125,904.30x = 188,856.45 × 97,363.95
  4. Step 4: Simplify right side
    125,904.30x = 18,387,809,954.98
  5. Step 5: Solve for x
    x = 18,387,809,954.98/125,904.30
  6. Step 6: Final answer
    x = 146,045.93

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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.