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Finding the Fourth Proportional to 7,189,818.91, 9,922,194.93 and 4,252,154.23

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Solution

The fourth proportional to 7,189,818.91, 9,922,194.93 and 4,252,154.23 is: 5,868,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189,818.91 : 9,922,194.93 = 4,252,154.23 : x
  2. Step 2: Convert to fraction form
    7,189,818.91/9,922,194.93 = 4,252,154.23/x
  3. Step 3: Cross multiply
    7,189,818.91x = 9,922,194.93 × 4,252,154.23
  4. Step 4: Simplify right side
    7,189,818.91x = 42,190,703,134,954.83
  5. Step 5: Solve for x
    x = 42,190,703,134,954.83/7,189,818.91
  6. Step 6: Final answer
    x = 5,868,117.63

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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.