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Finding the Fourth Proportional to 124,816.70, 172,205.01 and 71,063.69

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Solution

The fourth proportional to 124,816.70, 172,205.01 and 71,063.69 is: 98,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,816.70 : 172,205.01 = 71,063.69 : x
  2. Step 2: Convert to fraction form
    124,816.70/172,205.01 = 71,063.69/x
  3. Step 3: Cross multiply
    124,816.70x = 172,205.01 × 71,063.69
  4. Step 4: Simplify right side
    124,816.70x = 12,237,523,447.09
  5. Step 5: Solve for x
    x = 12,237,523,447.09/124,816.70
  6. Step 6: Final answer
    x = 98,043.96

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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.