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Finding the Fourth Proportional to 93,315.65, 139,629.02 and 55,902.15

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Solution

The fourth proportional to 93,315.65, 139,629.02 and 55,902.15 is: 83,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.65 : 139,629.02 = 55,902.15 : x
  2. Step 2: Convert to fraction form
    93,315.65/139,629.02 = 55,902.15/x
  3. Step 3: Cross multiply
    93,315.65x = 139,629.02 × 55,902.15
  4. Step 4: Simplify right side
    93,315.65x = 7,805,562,140.88
  5. Step 5: Solve for x
    x = 7,805,562,140.88/93,315.65
  6. Step 6: Final answer
    x = 83,646.88

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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.