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Finding the Fourth Proportional to 93,353.65, 140,085.86 and 87,442.99

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Solution

The fourth proportional to 93,353.65, 140,085.86 and 87,442.99 is: 131,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,353.65 : 140,085.86 = 87,442.99 : x
  2. Step 2: Convert to fraction form
    93,353.65/140,085.86 = 87,442.99/x
  3. Step 3: Cross multiply
    93,353.65x = 140,085.86 × 87,442.99
  4. Step 4: Simplify right side
    93,353.65x = 12,249,526,455.67
  5. Step 5: Solve for x
    x = 12,249,526,455.67/93,353.65
  6. Step 6: Final answer
    x = 131,216.36

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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.