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Finding the Fourth Proportional to 194,392.02, 291,518.28 and 74,482.68

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Solution

The fourth proportional to 194,392.02, 291,518.28 and 74,482.68 is: 111,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,392.02 : 291,518.28 = 74,482.68 : x
  2. Step 2: Convert to fraction form
    194,392.02/291,518.28 = 74,482.68/x
  3. Step 3: Cross multiply
    194,392.02x = 291,518.28 × 74,482.68
  4. Step 4: Simplify right side
    194,392.02x = 21,713,062,763.39
  5. Step 5: Solve for x
    x = 21,713,062,763.39/194,392.02
  6. Step 6: Final answer
    x = 111,697.29

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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.