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Finding the Fourth Proportional to 42,927,793.62, 59,234,978.40 and 29,019,410.64

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Solution

The fourth proportional to 42,927,793.62, 59,234,978.40 and 29,019,410.64 is: 40,043,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,927,793.62 : 59,234,978.40 = 29,019,410.64 : x
  2. Step 2: Convert to fraction form
    42,927,793.62/59,234,978.40 = 29,019,410.64/x
  3. Step 3: Cross multiply
    42,927,793.62x = 59,234,978.40 × 29,019,410.64
  4. Step 4: Simplify right side
    42,927,793.62x = 1,718,964,162,441,130.25
  5. Step 5: Solve for x
    x = 1,718,964,162,441,130.25/42,927,793.62
  6. Step 6: Final answer
    x = 40,043,151.94

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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.