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Finding the Fourth Proportional to 93,312.99, 139,858.68 and 53,788.41

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Solution

The fourth proportional to 93,312.99, 139,858.68 and 53,788.41 is: 80,618.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.99 : 139,858.68 = 53,788.41 : x
  2. Step 2: Convert to fraction form
    93,312.99/139,858.68 = 53,788.41/x
  3. Step 3: Cross multiply
    93,312.99x = 139,858.68 × 53,788.41
  4. Step 4: Simplify right side
    93,312.99x = 7,522,776,021.90
  5. Step 5: Solve for x
    x = 7,522,776,021.90/93,312.99
  6. Step 6: Final answer
    x = 80,618.74

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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.