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Finding the Fourth Proportional to 104,807,643.72, 144,628,646.22 and 57,764,574.65

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Solution

The fourth proportional to 104,807,643.72, 144,628,646.22 and 57,764,574.65 is: 79,711,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807,643.72 : 144,628,646.22 = 57,764,574.65 : x
  2. Step 2: Convert to fraction form
    104,807,643.72/144,628,646.22 = 57,764,574.65/x
  3. Step 3: Cross multiply
    104,807,643.72x = 144,628,646.22 × 57,764,574.65
  4. Step 4: Simplify right side
    104,807,643.72x = 8,354,412,230,380,487
  5. Step 5: Solve for x
    x = 8,354,412,230,380,487/104,807,643.72
  6. Step 6: Final answer
    x = 79,711,860.07

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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.