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Finding the Fourth Proportional to 239,474.64, 330,522.93 and 137,570.00

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Solution

The fourth proportional to 239,474.64, 330,522.93 and 137,570.00 is: 189,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,474.64 : 330,522.93 = 137,570.00 : x
  2. Step 2: Convert to fraction form
    239,474.64/330,522.93 = 137,570.00/x
  3. Step 3: Cross multiply
    239,474.64x = 330,522.93 × 137,570.00
  4. Step 4: Simplify right side
    239,474.64x = 45,470,037,827.49
  5. Step 5: Solve for x
    x = 45,470,037,827.49/239,474.64
  6. Step 6: Final answer
    x = 189,874.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.