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Finding the Fourth Proportional to 242,685.46, 364,029 and 74,205.16

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Solution

The fourth proportional to 242,685.46, 364,029 and 74,205.16 is: 111,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,685.46 : 364,029 = 74,205.16 : x
  2. Step 2: Convert to fraction form
    242,685.46/364,029 = 74,205.16/x
  3. Step 3: Cross multiply
    242,685.46x = 364,029 × 74,205.16
  4. Step 4: Simplify right side
    242,685.46x = 27,012,830,189.64
  5. Step 5: Solve for x
    x = 27,012,830,189.64/242,685.46
  6. Step 6: Final answer
    x = 111,307.99

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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.