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Finding the Fourth Proportional to 112,121,877.90, 168,182,816.85 and 112,121,877.90

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Solution

The fourth proportional to 112,121,877.90, 168,182,816.85 and 112,121,877.90 is: 168,182,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121,877.90 : 168,182,816.85 = 112,121,877.90 : x
  2. Step 2: Convert to fraction form
    112,121,877.90/168,182,816.85 = 112,121,877.90/x
  3. Step 3: Cross multiply
    112,121,877.90x = 168,182,816.85 × 112,121,877.90
  4. Step 4: Simplify right side
    112,121,877.90x = 18,856,973,255,733,764
  5. Step 5: Solve for x
    x = 18,856,973,255,733,764/112,121,877.90
  6. Step 6: Final answer
    x = 168,182,816.85

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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.