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Finding the Fourth Proportional to 238,989.56, 358,360.81 and 70,488.39

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Solution

The fourth proportional to 238,989.56, 358,360.81 and 70,488.39 is: 105,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,989.56 : 358,360.81 = 70,488.39 : x
  2. Step 2: Convert to fraction form
    238,989.56/358,360.81 = 70,488.39/x
  3. Step 3: Cross multiply
    238,989.56x = 358,360.81 × 70,488.39
  4. Step 4: Simplify right side
    238,989.56x = 25,260,276,536.00
  5. Step 5: Solve for x
    x = 25,260,276,536.00/238,989.56
  6. Step 6: Final answer
    x = 105,696.15

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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.