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Finding the Fourth Proportional to 98,964.86, 136,568.07 and 58,654.67

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Solution

The fourth proportional to 98,964.86, 136,568.07 and 58,654.67 is: 80,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,964.86 : 136,568.07 = 58,654.67 : x
  2. Step 2: Convert to fraction form
    98,964.86/136,568.07 = 58,654.67/x
  3. Step 3: Cross multiply
    98,964.86x = 136,568.07 × 58,654.67
  4. Step 4: Simplify right side
    98,964.86x = 8,010,354,395.55
  5. Step 5: Solve for x
    x = 8,010,354,395.55/98,964.86
  6. Step 6: Final answer
    x = 80,941.40

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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.