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Finding the Fourth Proportional to 131,841.32, 197,629.74 and 65,329.79

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Solution

The fourth proportional to 131,841.32, 197,629.74 and 65,329.79 is: 97,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,841.32 : 197,629.74 = 65,329.79 : x
  2. Step 2: Convert to fraction form
    131,841.32/197,629.74 = 65,329.79/x
  3. Step 3: Cross multiply
    131,841.32x = 197,629.74 × 65,329.79
  4. Step 4: Simplify right side
    131,841.32x = 12,911,108,423.81
  5. Step 5: Solve for x
    x = 12,911,108,423.81/131,841.32
  6. Step 6: Final answer
    x = 97,929.15

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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.