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Finding the Fourth Proportional to 141,876,221.40, 212,814,332.10 and 141,876,221.40

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Solution

The fourth proportional to 141,876,221.40, 212,814,332.10 and 141,876,221.40 is: 212,814,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876,221.40 : 212,814,332.10 = 141,876,221.40 : x
  2. Step 2: Convert to fraction form
    141,876,221.40/212,814,332.10 = 141,876,221.40/x
  3. Step 3: Cross multiply
    141,876,221.40x = 212,814,332.10 × 141,876,221.40
  4. Step 4: Simplify right side
    141,876,221.40x = 30,193,293,298,112,728
  5. Step 5: Solve for x
    x = 30,193,293,298,112,728/141,876,221.40
  6. Step 6: Final answer
    x = 212,814,332.10

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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.