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Finding the Fourth Proportional to 84,798.86, 116,955.66 and 75,118.67

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Solution

The fourth proportional to 84,798.86, 116,955.66 and 75,118.67 is: 103,604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,798.86 : 116,955.66 = 75,118.67 : x
  2. Step 2: Convert to fraction form
    84,798.86/116,955.66 = 75,118.67/x
  3. Step 3: Cross multiply
    84,798.86x = 116,955.66 × 75,118.67
  4. Step 4: Simplify right side
    84,798.86x = 8,785,553,628.17
  5. Step 5: Solve for x
    x = 8,785,553,628.17/84,798.86
  6. Step 6: Final answer
    x = 103,604.62

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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.