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Finding the Fourth Proportional to 99,492.66, 137,255.49 and 67,216.89

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Solution

The fourth proportional to 99,492.66, 137,255.49 and 67,216.89 is: 92,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,492.66 : 137,255.49 = 67,216.89 : x
  2. Step 2: Convert to fraction form
    99,492.66/137,255.49 = 67,216.89/x
  3. Step 3: Cross multiply
    99,492.66x = 137,255.49 × 67,216.89
  4. Step 4: Simplify right side
    99,492.66x = 9,225,887,173.23
  5. Step 5: Solve for x
    x = 9,225,887,173.23/99,492.66
  6. Step 6: Final answer
    x = 92,729.32

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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.