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Finding the Fourth Proportional to 92,800.97, 128,120.34 and 61,024.67

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Solution

The fourth proportional to 92,800.97, 128,120.34 and 61,024.67 is: 84,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,800.97 : 128,120.34 = 61,024.67 : x
  2. Step 2: Convert to fraction form
    92,800.97/128,120.34 = 61,024.67/x
  3. Step 3: Cross multiply
    92,800.97x = 128,120.34 × 61,024.67
  4. Step 4: Simplify right side
    92,800.97x = 7,818,501,468.79
  5. Step 5: Solve for x
    x = 7,818,501,468.79/92,800.97
  6. Step 6: Final answer
    x = 84,250.21

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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.