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Finding the Fourth Proportional to 169,535.70, 254,346.08 and 74,783.93

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Solution

The fourth proportional to 169,535.70, 254,346.08 and 74,783.93 is: 112,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,535.70 : 254,346.08 = 74,783.93 : x
  2. Step 2: Convert to fraction form
    169,535.70/254,346.08 = 74,783.93/x
  3. Step 3: Cross multiply
    169,535.70x = 254,346.08 × 74,783.93
  4. Step 4: Simplify right side
    169,535.70x = 19,020,997,796.84
  5. Step 5: Solve for x
    x = 19,020,997,796.84/169,535.70
  6. Step 6: Final answer
    x = 112,194.65

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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.