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Finding the Fourth Proportional to 238,874.96, 358,299.48 and 72,650

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Solution

The fourth proportional to 238,874.96, 358,299.48 and 72,650 is: 108,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,874.96 : 358,299.48 = 72,650 : x
  2. Step 2: Convert to fraction form
    238,874.96/358,299.48 = 72,650/x
  3. Step 3: Cross multiply
    238,874.96x = 358,299.48 × 72,650
  4. Step 4: Simplify right side
    238,874.96x = 26,030,457,222
  5. Step 5: Solve for x
    x = 26,030,457,222/238,874.96
  6. Step 6: Final answer
    x = 108,971.06

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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.