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Finding the Fourth Proportional to 238,886.58, 358,381.70 and 72,670.26

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Solution

The fourth proportional to 238,886.58, 358,381.70 and 72,670.26 is: 109,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,886.58 : 358,381.70 = 72,670.26 : x
  2. Step 2: Convert to fraction form
    238,886.58/358,381.70 = 72,670.26/x
  3. Step 3: Cross multiply
    238,886.58x = 358,381.70 × 72,670.26
  4. Step 4: Simplify right side
    238,886.58x = 26,043,691,318.24
  5. Step 5: Solve for x
    x = 26,043,691,318.24/238,886.58
  6. Step 6: Final answer
    x = 109,021.16

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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.