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Finding the Fourth Proportional to 111,364, 153,682.33 and 61,064.08

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Solution

The fourth proportional to 111,364, 153,682.33 and 61,064.08 is: 84,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,364 : 153,682.33 = 61,064.08 : x
  2. Step 2: Convert to fraction form
    111,364/153,682.33 = 61,064.08/x
  3. Step 3: Cross multiply
    111,364x = 153,682.33 × 61,064.08
  4. Step 4: Simplify right side
    111,364x = 9,384,470,093.71
  5. Step 5: Solve for x
    x = 9,384,470,093.71/111,364
  6. Step 6: Final answer
    x = 84,268.44

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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.