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Finding the Fourth Proportional to 238,750.50, 358,066.20 and 70,237.28

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Solution

The fourth proportional to 238,750.50, 358,066.20 and 70,237.28 is: 105,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,750.50 : 358,066.20 = 70,237.28 : x
  2. Step 2: Convert to fraction form
    238,750.50/358,066.20 = 70,237.28/x
  3. Step 3: Cross multiply
    238,750.50x = 358,066.20 × 70,237.28
  4. Step 4: Simplify right side
    238,750.50x = 25,149,595,947.94
  5. Step 5: Solve for x
    x = 25,149,595,947.94/238,750.50
  6. Step 6: Final answer
    x = 105,338.40

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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.