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Finding the Fourth Proportional to 159,403.72, 219,911.10 and 94,860.02

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Solution

The fourth proportional to 159,403.72, 219,911.10 and 94,860.02 is: 130,867.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,403.72 : 219,911.10 = 94,860.02 : x
  2. Step 2: Convert to fraction form
    159,403.72/219,911.10 = 94,860.02/x
  3. Step 3: Cross multiply
    159,403.72x = 219,911.10 × 94,860.02
  4. Step 4: Simplify right side
    159,403.72x = 20,860,771,344.22
  5. Step 5: Solve for x
    x = 20,860,771,344.22/159,403.72
  6. Step 6: Final answer
    x = 130,867.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.