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Finding the Fourth Proportional to 624,719.42, 937,079.11 and 151,404.78

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Solution

The fourth proportional to 624,719.42, 937,079.11 and 151,404.78 is: 227,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,719.42 : 937,079.11 = 151,404.78 : x
  2. Step 2: Convert to fraction form
    624,719.42/937,079.11 = 151,404.78/x
  3. Step 3: Cross multiply
    624,719.42x = 937,079.11 × 151,404.78
  4. Step 4: Simplify right side
    624,719.42x = 141,878,256,492.15
  5. Step 5: Solve for x
    x = 141,878,256,492.15/624,719.42
  6. Step 6: Final answer
    x = 227,107.17

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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.