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Finding the Fourth Proportional to 92,170.73, 127,127.69 and 69,510.67

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Solution

The fourth proportional to 92,170.73, 127,127.69 and 69,510.67 is: 95,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,170.73 : 127,127.69 = 69,510.67 : x
  2. Step 2: Convert to fraction form
    92,170.73/127,127.69 = 69,510.67/x
  3. Step 3: Cross multiply
    92,170.73x = 127,127.69 × 69,510.67
  4. Step 4: Simplify right side
    92,170.73x = 8,836,730,907.45
  5. Step 5: Solve for x
    x = 8,836,730,907.45/92,170.73
  6. Step 6: Final answer
    x = 95,873.50

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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.