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Finding the Fourth Proportional to 159,369.15, 238,943.03 and 70,574.25

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Solution

The fourth proportional to 159,369.15, 238,943.03 and 70,574.25 is: 105,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,369.15 : 238,943.03 = 70,574.25 : x
  2. Step 2: Convert to fraction form
    159,369.15/238,943.03 = 70,574.25/x
  3. Step 3: Cross multiply
    159,369.15x = 238,943.03 × 70,574.25
  4. Step 4: Simplify right side
    159,369.15x = 16,863,224,782.11
  5. Step 5: Solve for x
    x = 16,863,224,782.11/159,369.15
  6. Step 6: Final answer
    x = 105,812.35

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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.