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Finding the Fourth Proportional to 90,363.70, 124,701.73 and 49,528.82

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Solution

The fourth proportional to 90,363.70, 124,701.73 and 49,528.82 is: 68,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,363.70 : 124,701.73 = 49,528.82 : x
  2. Step 2: Convert to fraction form
    90,363.70/124,701.73 = 49,528.82/x
  3. Step 3: Cross multiply
    90,363.70x = 124,701.73 × 49,528.82
  4. Step 4: Simplify right side
    90,363.70x = 6,176,329,025.34
  5. Step 5: Solve for x
    x = 6,176,329,025.34/90,363.70
  6. Step 6: Final answer
    x = 68,349.67

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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.