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Finding the Fourth Proportional to 238,655.70, 357,975.45 and 61,164.45

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Solution

The fourth proportional to 238,655.70, 357,975.45 and 61,164.45 is: 91,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,655.70 : 357,975.45 = 61,164.45 : x
  2. Step 2: Convert to fraction form
    238,655.70/357,975.45 = 61,164.45/x
  3. Step 3: Cross multiply
    238,655.70x = 357,975.45 × 61,164.45
  4. Step 4: Simplify right side
    238,655.70x = 21,895,371,512.75
  5. Step 5: Solve for x
    x = 21,895,371,512.75/238,655.70
  6. Step 6: Final answer
    x = 91,744.60

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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.