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Finding the Fourth Proportional to 65,996,596.80, 99,018,514.80 and 27,669,859.20

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Solution

The fourth proportional to 65,996,596.80, 99,018,514.80 and 27,669,859.20 is: 41,514,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996,596.80 : 99,018,514.80 = 27,669,859.20 : x
  2. Step 2: Convert to fraction form
    65,996,596.80/99,018,514.80 = 27,669,859.20/x
  3. Step 3: Cross multiply
    65,996,596.80x = 99,018,514.80 × 27,669,859.20
  4. Step 4: Simplify right side
    65,996,596.80x = 2,739,828,362,709,116
  5. Step 5: Solve for x
    x = 2,739,828,362,709,116/65,996,596.80
  6. Step 6: Final answer
    x = 41,514,691.60

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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.