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Finding the Fourth Proportional to 119,521.60, 178,893.60 and 93,083.20

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Solution

The fourth proportional to 119,521.60, 178,893.60 and 93,083.20 is: 139,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,521.60 : 178,893.60 = 93,083.20 : x
  2. Step 2: Convert to fraction form
    119,521.60/178,893.60 = 93,083.20/x
  3. Step 3: Cross multiply
    119,521.60x = 178,893.60 × 93,083.20
  4. Step 4: Simplify right side
    119,521.60x = 16,651,988,747.52
  5. Step 5: Solve for x
    x = 16,651,988,747.52/119,521.60
  6. Step 6: Final answer
    x = 139,322.00

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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.