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Finding the Fourth Proportional to 93,028.30, 139,431.71 and 64,795.48

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Solution

The fourth proportional to 93,028.30, 139,431.71 and 64,795.48 is: 97,116.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,028.30 : 139,431.71 = 64,795.48 : x
  2. Step 2: Convert to fraction form
    93,028.30/139,431.71 = 64,795.48/x
  3. Step 3: Cross multiply
    93,028.30x = 139,431.71 × 64,795.48
  4. Step 4: Simplify right side
    93,028.30x = 9,034,544,390.08
  5. Step 5: Solve for x
    x = 9,034,544,390.08/93,028.30
  6. Step 6: Final answer
    x = 97,116.09

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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.