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Finding the Fourth Proportional to 160,907,908.80, 221,898,542.40 and 108,103,918.08

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Solution

The fourth proportional to 160,907,908.80, 221,898,542.40 and 108,103,918.08 is: 149,079,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,907,908.80 : 221,898,542.40 = 108,103,918.08 : x
  2. Step 2: Convert to fraction form
    160,907,908.80/221,898,542.40 = 108,103,918.08/x
  3. Step 3: Cross multiply
    160,907,908.80x = 221,898,542.40 × 108,103,918.08
  4. Step 4: Simplify right side
    160,907,908.80x = 23,988,101,849,681,008
  5. Step 5: Solve for x
    x = 23,988,101,849,681,008/160,907,908.80
  6. Step 6: Final answer
    x = 149,079,694.27

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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.