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Finding the Fourth Proportional to 359,842,997.82, 539,764,496.58 and 87,213,764.82

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Solution

The fourth proportional to 359,842,997.82, 539,764,496.58 and 87,213,764.82 is: 130,820,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,842,997.82 : 539,764,496.58 = 87,213,764.82 : x
  2. Step 2: Convert to fraction form
    359,842,997.82/539,764,496.58 = 87,213,764.82/x
  3. Step 3: Cross multiply
    359,842,997.82x = 539,764,496.58 × 87,213,764.82
  4. Step 4: Simplify right side
    359,842,997.82x = 47,074,893,862,913,816
  5. Step 5: Solve for x
    x = 47,074,893,862,913,816/359,842,997.82
  6. Step 6: Final answer
    x = 130,820,647.19

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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.