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Finding the Fourth Proportional to 122,311.42, 168,798.33 and 67,881.40

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Solution

The fourth proportional to 122,311.42, 168,798.33 and 67,881.40 is: 93,681.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,311.42 : 168,798.33 = 67,881.40 : x
  2. Step 2: Convert to fraction form
    122,311.42/168,798.33 = 67,881.40/x
  3. Step 3: Cross multiply
    122,311.42x = 168,798.33 × 67,881.40
  4. Step 4: Simplify right side
    122,311.42x = 11,458,266,958.06
  5. Step 5: Solve for x
    x = 11,458,266,958.06/122,311.42
  6. Step 6: Final answer
    x = 93,681.09

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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.