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Finding the Fourth Proportional to 283,858,594.88, 425,859,808.05 and 87,131,981.88

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Solution

The fourth proportional to 283,858,594.88, 425,859,808.05 and 87,131,981.88 is: 130,720,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,858,594.88 : 425,859,808.05 = 87,131,981.88 : x
  2. Step 2: Convert to fraction form
    283,858,594.88/425,859,808.05 = 87,131,981.88/x
  3. Step 3: Cross multiply
    283,858,594.88x = 425,859,808.05 × 87,131,981.88
  4. Step 4: Simplify right side
    283,858,594.88x = 37,106,009,078,432,880
  5. Step 5: Solve for x
    x = 37,106,009,078,432,880/283,858,594.88
  6. Step 6: Final answer
    x = 130,720,047.76

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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.