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Finding the Fourth Proportional to 88,180.91, 121,606.76 and 68,005.83

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Solution

The fourth proportional to 88,180.91, 121,606.76 and 68,005.83 is: 93,784.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,180.91 : 121,606.76 = 68,005.83 : x
  2. Step 2: Convert to fraction form
    88,180.91/121,606.76 = 68,005.83/x
  3. Step 3: Cross multiply
    88,180.91x = 121,606.76 × 68,005.83
  4. Step 4: Simplify right side
    88,180.91x = 8,269,968,307.38
  5. Step 5: Solve for x
    x = 8,269,968,307.38/88,180.91
  6. Step 6: Final answer
    x = 93,784.12

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1.5x scale

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.