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Finding the Fourth Proportional to 86,773,992.99, 119,747,781.72 and 47,616,424.89

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Solution

The fourth proportional to 86,773,992.99, 119,747,781.72 and 47,616,424.89 is: 65,710,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,773,992.99 : 119,747,781.72 = 47,616,424.89 : x
  2. Step 2: Convert to fraction form
    86,773,992.99/119,747,781.72 = 47,616,424.89/x
  3. Step 3: Cross multiply
    86,773,992.99x = 119,747,781.72 × 47,616,424.89
  4. Step 4: Simplify right side
    86,773,992.99x = 5,701,961,254,014,495
  5. Step 5: Solve for x
    x = 5,701,961,254,014,495/86,773,992.99
  6. Step 6: Final answer
    x = 65,710,486.03

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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.