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Finding the Fourth Proportional to 158,716, 238,140.75 and 98,794.57

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Solution

The fourth proportional to 158,716, 238,140.75 and 98,794.57 is: 148,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,716 : 238,140.75 = 98,794.57 : x
  2. Step 2: Convert to fraction form
    158,716/238,140.75 = 98,794.57/x
  3. Step 3: Cross multiply
    158,716x = 238,140.75 × 98,794.57
  4. Step 4: Simplify right side
    158,716x = 23,527,012,995.73
  5. Step 5: Solve for x
    x = 23,527,012,995.73/158,716
  6. Step 6: Final answer
    x = 148,233.40

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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.