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Finding the Fourth Proportional to 111,482.22, 153,801.66 and 63,709.94

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Solution

The fourth proportional to 111,482.22, 153,801.66 and 63,709.94 is: 87,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,482.22 : 153,801.66 = 63,709.94 : x
  2. Step 2: Convert to fraction form
    111,482.22/153,801.66 = 63,709.94/x
  3. Step 3: Cross multiply
    111,482.22x = 153,801.66 × 63,709.94
  4. Step 4: Simplify right side
    111,482.22x = 9,798,694,530.50
  5. Step 5: Solve for x
    x = 9,798,694,530.50/111,482.22
  6. Step 6: Final answer
    x = 87,894.68

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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.