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Finding the Fourth Proportional to 238,995, 358,492.46 and 89,246.97

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Solution

The fourth proportional to 238,995, 358,492.46 and 89,246.97 is: 133,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,995 : 358,492.46 = 89,246.97 : x
  2. Step 2: Convert to fraction form
    238,995/358,492.46 = 89,246.97/x
  3. Step 3: Cross multiply
    238,995x = 358,492.46 × 89,246.97
  4. Step 4: Simplify right side
    238,995x = 31,994,365,376.61
  5. Step 5: Solve for x
    x = 31,994,365,376.61/238,995
  6. Step 6: Final answer
    x = 133,870.44

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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.