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Finding the Fourth Proportional to 169,911.70, 254,859.45 and 57,580.90

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Solution

The fourth proportional to 169,911.70, 254,859.45 and 57,580.90 is: 86,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,911.70 : 254,859.45 = 57,580.90 : x
  2. Step 2: Convert to fraction form
    169,911.70/254,859.45 = 57,580.90/x
  3. Step 3: Cross multiply
    169,911.70x = 254,859.45 × 57,580.90
  4. Step 4: Simplify right side
    169,911.70x = 14,675,036,504.51
  5. Step 5: Solve for x
    x = 14,675,036,504.51/169,911.70
  6. Step 6: Final answer
    x = 86,368.61

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1.5x scale

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.