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Finding the Fourth Proportional to 66,995,579.80, 100,440,225.60 and 36,703,442.80

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Solution

The fourth proportional to 66,995,579.80, 100,440,225.60 and 36,703,442.80 is: 55,026,049.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,995,579.80 : 100,440,225.60 = 36,703,442.80 : x
  2. Step 2: Convert to fraction form
    66,995,579.80/100,440,225.60 = 36,703,442.80/x
  3. Step 3: Cross multiply
    66,995,579.80x = 100,440,225.60 × 36,703,442.80
  4. Step 4: Simplify right side
    66,995,579.80x = 3,686,502,075,128,695
  5. Step 5: Solve for x
    x = 3,686,502,075,128,695/66,995,579.80
  6. Step 6: Final answer
    x = 55,026,049.27

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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.