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Finding the Fourth Proportional to 210,614,447.40, 315,354,800.70 and 210,614,447.40

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Solution

The fourth proportional to 210,614,447.40, 315,354,800.70 and 210,614,447.40 is: 315,354,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,614,447.40 : 315,354,800.70 = 210,614,447.40 : x
  2. Step 2: Convert to fraction form
    210,614,447.40/315,354,800.70 = 210,614,447.40/x
  3. Step 3: Cross multiply
    210,614,447.40x = 315,354,800.70 × 210,614,447.40
  4. Step 4: Simplify right side
    210,614,447.40x = 66,418,277,084,367,632
  5. Step 5: Solve for x
    x = 66,418,277,084,367,632/210,614,447.40
  6. Step 6: Final answer
    x = 315,354,800.70

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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.