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Finding the Fourth Proportional to 238,776.29, 358,041.15 and 70,274.72

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Solution

The fourth proportional to 238,776.29, 358,041.15 and 70,274.72 is: 105,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,776.29 : 358,041.15 = 70,274.72 : x
  2. Step 2: Convert to fraction form
    238,776.29/358,041.15 = 70,274.72/x
  3. Step 3: Cross multiply
    238,776.29x = 358,041.15 × 70,274.72
  4. Step 4: Simplify right side
    238,776.29x = 25,161,239,774.52
  5. Step 5: Solve for x
    x = 25,161,239,774.52/238,776.29
  6. Step 6: Final answer
    x = 105,375.79

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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.