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Finding the Fourth Proportional to 169,970.40, 254,944.80 and 57,650.40

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Solution

The fourth proportional to 169,970.40, 254,944.80 and 57,650.40 is: 86,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,970.40 : 254,944.80 = 57,650.40 : x
  2. Step 2: Convert to fraction form
    169,970.40/254,944.80 = 57,650.40/x
  3. Step 3: Cross multiply
    169,970.40x = 254,944.80 × 57,650.40
  4. Step 4: Simplify right side
    169,970.40x = 14,697,669,697.92
  5. Step 5: Solve for x
    x = 14,697,669,697.92/169,970.40
  6. Step 6: Final answer
    x = 86,471.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.