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Finding the Fourth Proportional to 242,867.04, 364,320 and 74,400.72

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Solution

The fourth proportional to 242,867.04, 364,320 and 74,400.72 is: 111,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,867.04 : 364,320 = 74,400.72 : x
  2. Step 2: Convert to fraction form
    242,867.04/364,320 = 74,400.72/x
  3. Step 3: Cross multiply
    242,867.04x = 364,320 × 74,400.72
  4. Step 4: Simplify right side
    242,867.04x = 27,105,670,310.40
  5. Step 5: Solve for x
    x = 27,105,670,310.40/242,867.04
  6. Step 6: Final answer
    x = 111,607.04

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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.