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Finding the Fourth Proportional to 230,801.60, 346,353.78 and 81,038.03

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Solution

The fourth proportional to 230,801.60, 346,353.78 and 81,038.03 is: 121,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,801.60 : 346,353.78 = 81,038.03 : x
  2. Step 2: Convert to fraction form
    230,801.60/346,353.78 = 81,038.03/x
  3. Step 3: Cross multiply
    230,801.60x = 346,353.78 × 81,038.03
  4. Step 4: Simplify right side
    230,801.60x = 28,067,827,609.06
  5. Step 5: Solve for x
    x = 28,067,827,609.06/230,801.60
  6. Step 6: Final answer
    x = 121,610.20

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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.