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Finding the Fourth Proportional to 75,805,056.61, 104,610,978.28 and 40,997,747.04

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Solution

The fourth proportional to 75,805,056.61, 104,610,978.28 and 40,997,747.04 is: 56,576,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,805,056.61 : 104,610,978.28 = 40,997,747.04 : x
  2. Step 2: Convert to fraction form
    75,805,056.61/104,610,978.28 = 40,997,747.04/x
  3. Step 3: Cross multiply
    75,805,056.61x = 104,610,978.28 × 40,997,747.04
  4. Step 4: Simplify right side
    75,805,056.61x = 4,288,814,425,027,880
  5. Step 5: Solve for x
    x = 4,288,814,425,027,880/75,805,056.61
  6. Step 6: Final answer
    x = 56,576,891.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.