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Finding the Fourth Proportional to 168,506,887.30, 236,589,886.70 and 168,506,887.30

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Solution

The fourth proportional to 168,506,887.30, 236,589,886.70 and 168,506,887.30 is: 236,589,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,506,887.30 : 236,589,886.70 = 168,506,887.30 : x
  2. Step 2: Convert to fraction form
    168,506,887.30/236,589,886.70 = 168,506,887.30/x
  3. Step 3: Cross multiply
    168,506,887.30x = 236,589,886.70 × 168,506,887.30
  4. Step 4: Simplify right side
    168,506,887.30x = 39,867,025,374,476,672
  5. Step 5: Solve for x
    x = 39,867,025,374,476,672/168,506,887.30
  6. Step 6: Final answer
    x = 236,589,886.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.