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Finding the Fourth Proportional to 111,115.14, 153,342.55 and 60,814.14

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Solution

The fourth proportional to 111,115.14, 153,342.55 and 60,814.14 is: 83,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.14 : 153,342.55 = 60,814.14 : x
  2. Step 2: Convert to fraction form
    111,115.14/153,342.55 = 60,814.14/x
  3. Step 3: Cross multiply
    111,115.14x = 153,342.55 × 60,814.14
  4. Step 4: Simplify right side
    111,115.14x = 9,325,395,303.66
  5. Step 5: Solve for x
    x = 9,325,395,303.66/111,115.14
  6. Step 6: Final answer
    x = 83,925.51

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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.