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Finding the Fourth Proportional to 231,141.60, 346,712.40 and 64,929.60

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Solution

The fourth proportional to 231,141.60, 346,712.40 and 64,929.60 is: 97,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,141.60 : 346,712.40 = 64,929.60 : x
  2. Step 2: Convert to fraction form
    231,141.60/346,712.40 = 64,929.60/x
  3. Step 3: Cross multiply
    231,141.60x = 346,712.40 × 64,929.60
  4. Step 4: Simplify right side
    231,141.60x = 22,511,897,447.04
  5. Step 5: Solve for x
    x = 22,511,897,447.04/231,141.60
  6. Step 6: Final answer
    x = 97,394.40

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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.