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Finding the Fourth Proportional to 140,000.67, 193,200.93 and 89,699.67

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Solution

The fourth proportional to 140,000.67, 193,200.93 and 89,699.67 is: 123,785.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,000.67 : 193,200.93 = 89,699.67 : x
  2. Step 2: Convert to fraction form
    140,000.67/193,200.93 = 89,699.67/x
  3. Step 3: Cross multiply
    140,000.67x = 193,200.93 × 89,699.67
  4. Step 4: Simplify right side
    140,000.67x = 17,330,059,664.69
  5. Step 5: Solve for x
    x = 17,330,059,664.69/140,000.67
  6. Step 6: Final answer
    x = 123,785.55

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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.