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Finding the Fourth Proportional to 238,854.92, 358,344.35 and 70,381.20

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Solution

The fourth proportional to 238,854.92, 358,344.35 and 70,381.20 is: 105,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,854.92 : 358,344.35 = 70,381.20 : x
  2. Step 2: Convert to fraction form
    238,854.92/358,344.35 = 70,381.20/x
  3. Step 3: Cross multiply
    238,854.92x = 358,344.35 × 70,381.20
  4. Step 4: Simplify right side
    238,854.92x = 25,220,705,014.31
  5. Step 5: Solve for x
    x = 25,220,705,014.31/238,854.92
  6. Step 6: Final answer
    x = 105,590.06

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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.