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Finding the Fourth Proportional to 243,325.61, 364,989.26 and 74,844.80

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Solution

The fourth proportional to 243,325.61, 364,989.26 and 74,844.80 is: 112,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,325.61 : 364,989.26 = 74,844.80 : x
  2. Step 2: Convert to fraction form
    243,325.61/364,989.26 = 74,844.80/x
  3. Step 3: Cross multiply
    243,325.61x = 364,989.26 × 74,844.80
  4. Step 4: Simplify right side
    243,325.61x = 27,317,545,967.68
  5. Step 5: Solve for x
    x = 27,317,545,967.68/243,325.61
  6. Step 6: Final answer
    x = 112,267.45

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1.5x scale

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.