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Finding the Fourth Proportional to 238,648.60, 357,916.38 and 88,959.16

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Solution

The fourth proportional to 238,648.60, 357,916.38 and 88,959.16 is: 133,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,648.60 : 357,916.38 = 88,959.16 : x
  2. Step 2: Convert to fraction form
    238,648.60/357,916.38 = 88,959.16/x
  3. Step 3: Cross multiply
    238,648.60x = 357,916.38 × 88,959.16
  4. Step 4: Simplify right side
    238,648.60x = 31,839,940,515.04
  5. Step 5: Solve for x
    x = 31,839,940,515.04/238,648.60
  6. Step 6: Final answer
    x = 133,417.67

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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.