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Finding the Fourth Proportional to 84,312.75, 116,300.70 and 55,622.19

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Solution

The fourth proportional to 84,312.75, 116,300.70 and 55,622.19 is: 76,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,312.75 : 116,300.70 = 55,622.19 : x
  2. Step 2: Convert to fraction form
    84,312.75/116,300.70 = 55,622.19/x
  3. Step 3: Cross multiply
    84,312.75x = 116,300.70 × 55,622.19
  4. Step 4: Simplify right side
    84,312.75x = 6,468,899,632.53
  5. Step 5: Solve for x
    x = 6,468,899,632.53/84,312.75
  6. Step 6: Final answer
    x = 76,725.05

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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.