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Finding the Fourth Proportional to 93,134.25, 139,728.96 and 53,719.65

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Solution

The fourth proportional to 93,134.25, 139,728.96 and 53,719.65 is: 80,595.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,134.25 : 139,728.96 = 53,719.65 : x
  2. Step 2: Convert to fraction form
    93,134.25/139,728.96 = 53,719.65/x
  3. Step 3: Cross multiply
    93,134.25x = 139,728.96 × 53,719.65
  4. Step 4: Simplify right side
    93,134.25x = 7,506,190,826.06
  5. Step 5: Solve for x
    x = 7,506,190,826.06/93,134.25
  6. Step 6: Final answer
    x = 80,595.39

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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.