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Finding the Fourth Proportional to 186,702,347.80, 280,053,521.70 and 100,608,905.80

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Solution

The fourth proportional to 186,702,347.80, 280,053,521.70 and 100,608,905.80 is: 150,913,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,702,347.80 : 280,053,521.70 = 100,608,905.80 : x
  2. Step 2: Convert to fraction form
    186,702,347.80/280,053,521.70 = 100,608,905.80/x
  3. Step 3: Cross multiply
    186,702,347.80x = 280,053,521.70 × 100,608,905.80
  4. Step 4: Simplify right side
    186,702,347.80x = 28,175,878,383,673,552
  5. Step 5: Solve for x
    x = 28,175,878,383,673,552/186,702,347.80
  6. Step 6: Final answer
    x = 150,913,358.70

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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.