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Finding the Fourth Proportional to 112,972,130.20, 169,458,195.30 and 112,972,130.20

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Solution

The fourth proportional to 112,972,130.20, 169,458,195.30 and 112,972,130.20 is: 169,458,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972,130.20 : 169,458,195.30 = 112,972,130.20 : x
  2. Step 2: Convert to fraction form
    112,972,130.20/169,458,195.30 = 112,972,130.20/x
  3. Step 3: Cross multiply
    112,972,130.20x = 169,458,195.30 × 112,972,130.20
  4. Step 4: Simplify right side
    112,972,130.20x = 19,144,053,302,888,628
  5. Step 5: Solve for x
    x = 19,144,053,302,888,628/112,972,130.20
  6. Step 6: Final answer
    x = 169,458,195.30

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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.