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Finding the Fourth Proportional to 186,895.58, 280,347.36 and 66,960.34

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Solution

The fourth proportional to 186,895.58, 280,347.36 and 66,960.34 is: 100,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,895.58 : 280,347.36 = 66,960.34 : x
  2. Step 2: Convert to fraction form
    186,895.58/280,347.36 = 66,960.34/x
  3. Step 3: Cross multiply
    186,895.58x = 280,347.36 × 66,960.34
  4. Step 4: Simplify right side
    186,895.58x = 18,772,154,543.70
  5. Step 5: Solve for x
    x = 18,772,154,543.70/186,895.58
  6. Step 6: Final answer
    x = 100,441.94

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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.