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Finding the Fourth Proportional to 108,712.60, 151,886.60 and 108,712.60

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Solution

The fourth proportional to 108,712.60, 151,886.60 and 108,712.60 is: 151,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712.60 : 151,886.60 = 108,712.60 : x
  2. Step 2: Convert to fraction form
    108,712.60/151,886.60 = 108,712.60/x
  3. Step 3: Cross multiply
    108,712.60x = 151,886.60 × 108,712.60
  4. Step 4: Simplify right side
    108,712.60x = 16,511,987,191.16
  5. Step 5: Solve for x
    x = 16,511,987,191.16/108,712.60
  6. Step 6: Final answer
    x = 151,886.60

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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.