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Finding the Fourth Proportional to 186,734,117.20, 280,101,175.80 and 118,877,630.80

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Solution

The fourth proportional to 186,734,117.20, 280,101,175.80 and 118,877,630.80 is: 178,316,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,734,117.20 : 280,101,175.80 = 118,877,630.80 : x
  2. Step 2: Convert to fraction form
    186,734,117.20/280,101,175.80 = 118,877,630.80/x
  3. Step 3: Cross multiply
    186,734,117.20x = 280,101,175.80 × 118,877,630.80
  4. Step 4: Simplify right side
    186,734,117.20x = 33,297,764,163,398,296
  5. Step 5: Solve for x
    x = 33,297,764,163,398,296/186,734,117.20
  6. Step 6: Final answer
    x = 178,316,446.20

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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.