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Finding the Fourth Proportional to 568,674,440.76, 853,011,661.12 and 137,852,936.76

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Solution

The fourth proportional to 568,674,440.76, 853,011,661.12 and 137,852,936.76 is: 206,779,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,674,440.76 : 853,011,661.12 = 137,852,936.76 : x
  2. Step 2: Convert to fraction form
    568,674,440.76/853,011,661.12 = 137,852,936.76/x
  3. Step 3: Cross multiply
    568,674,440.76x = 853,011,661.12 × 137,852,936.76
  4. Step 4: Simplify right side
    568,674,440.76x = 117,590,162,575,917,904
  5. Step 5: Solve for x
    x = 117,590,162,575,917,904/568,674,440.76
  6. Step 6: Final answer
    x = 206,779,405.14

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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.