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Finding the Fourth Proportional to 215,798.14, 297,800.49 and 125,172.46

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Solution

The fourth proportional to 215,798.14, 297,800.49 and 125,172.46 is: 172,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,798.14 : 297,800.49 = 125,172.46 : x
  2. Step 2: Convert to fraction form
    215,798.14/297,800.49 = 125,172.46/x
  3. Step 3: Cross multiply
    215,798.14x = 297,800.49 × 125,172.46
  4. Step 4: Simplify right side
    215,798.14x = 37,276,419,922.51
  5. Step 5: Solve for x
    x = 37,276,419,922.51/215,798.14
  6. Step 6: Final answer
    x = 172,737.45

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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.