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Finding the Fourth Proportional to 213,992,619.26, 320,887,740.04 and 82,896,294.11

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Solution

The fourth proportional to 213,992,619.26, 320,887,740.04 and 82,896,294.11 is: 124,305,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,992,619.26 : 320,887,740.04 = 82,896,294.11 : x
  2. Step 2: Convert to fraction form
    213,992,619.26/320,887,740.04 = 82,896,294.11/x
  3. Step 3: Cross multiply
    213,992,619.26x = 320,887,740.04 × 82,896,294.11
  4. Step 4: Simplify right side
    213,992,619.26x = 26,600,404,472,837,388
  5. Step 5: Solve for x
    x = 26,600,404,472,837,388/213,992,619.26
  6. Step 6: Final answer
    x = 124,305,242.70

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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.