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Finding the Fourth Proportional to 125,402.49, 188,116.47 and 36,657.63

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Solution

The fourth proportional to 125,402.49, 188,116.47 and 36,657.63 is: 54,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,402.49 : 188,116.47 = 36,657.63 : x
  2. Step 2: Convert to fraction form
    125,402.49/188,116.47 = 36,657.63/x
  3. Step 3: Cross multiply
    125,402.49x = 188,116.47 × 36,657.63
  4. Step 4: Simplify right side
    125,402.49x = 6,895,903,954.17
  5. Step 5: Solve for x
    x = 6,895,903,954.17/125,402.49
  6. Step 6: Final answer
    x = 54,990.17

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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.