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Finding the Fourth Proportional to 65,996,530.80, 99,018,415.80 and 27,669,793.20

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Solution

The fourth proportional to 65,996,530.80, 99,018,415.80 and 27,669,793.20 is: 41,514,592.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996,530.80 : 99,018,415.80 = 27,669,793.20 : x
  2. Step 2: Convert to fraction form
    65,996,530.80/99,018,415.80 = 27,669,793.20/x
  3. Step 3: Cross multiply
    65,996,530.80x = 99,018,415.80 × 27,669,793.20
  4. Step 4: Simplify right side
    65,996,530.80x = 2,739,819,088,177,612.50
  5. Step 5: Solve for x
    x = 2,739,819,088,177,612.50/65,996,530.80
  6. Step 6: Final answer
    x = 41,514,592.58

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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.