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Finding the Fourth Proportional to 308,966,222.73, 426,373,559.58 and 169,745,952.57

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Solution

The fourth proportional to 308,966,222.73, 426,373,559.58 and 169,745,952.57 is: 234,249,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,966,222.73 : 426,373,559.58 = 169,745,952.57 : x
  2. Step 2: Convert to fraction form
    308,966,222.73/426,373,559.58 = 169,745,952.57/x
  3. Step 3: Cross multiply
    308,966,222.73x = 426,373,559.58 × 169,745,952.57
  4. Step 4: Simplify right side
    308,966,222.73x = 72,375,186,021,568,736
  5. Step 5: Solve for x
    x = 72,375,186,021,568,736/308,966,222.73
  6. Step 6: Final answer
    x = 234,249,509.16

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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.