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Finding the Fourth Proportional to 210,069,115.90, 314,536,803.45 and 210,069,115.90

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Solution

The fourth proportional to 210,069,115.90, 314,536,803.45 and 210,069,115.90 is: 314,536,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,069,115.90 : 314,536,803.45 = 210,069,115.90 : x
  2. Step 2: Convert to fraction form
    210,069,115.90/314,536,803.45 = 210,069,115.90/x
  3. Step 3: Cross multiply
    210,069,115.90x = 314,536,803.45 × 210,069,115.90
  4. Step 4: Simplify right side
    210,069,115.90x = 66,074,468,218,753,568
  5. Step 5: Solve for x
    x = 66,074,468,218,753,568/210,069,115.90
  6. Step 6: Final answer
    x = 314,536,803.45

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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.