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Finding the Fourth Proportional to 186,625,793.60, 279,938,690.40 and 84,393,166.40

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Solution

The fourth proportional to 186,625,793.60, 279,938,690.40 and 84,393,166.40 is: 126,589,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,625,793.60 : 279,938,690.40 = 84,393,166.40 : x
  2. Step 2: Convert to fraction form
    186,625,793.60/279,938,690.40 = 84,393,166.40/x
  3. Step 3: Cross multiply
    186,625,793.60x = 279,938,690.40 × 84,393,166.40
  4. Step 4: Simplify right side
    186,625,793.60x = 23,624,912,480,725,284
  5. Step 5: Solve for x
    x = 23,624,912,480,725,284/186,625,793.60
  6. Step 6: Final answer
    x = 126,589,749.60

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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.