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Finding the Fourth Proportional to 109,681.66, 151,364.19 and 67,283.02

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Solution

The fourth proportional to 109,681.66, 151,364.19 and 67,283.02 is: 92,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,681.66 : 151,364.19 = 67,283.02 : x
  2. Step 2: Convert to fraction form
    109,681.66/151,364.19 = 67,283.02/x
  3. Step 3: Cross multiply
    109,681.66x = 151,364.19 × 67,283.02
  4. Step 4: Simplify right side
    109,681.66x = 10,184,239,823.05
  5. Step 5: Solve for x
    x = 10,184,239,823.05/109,681.66
  6. Step 6: Final answer
    x = 92,852.71

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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.