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Finding the Fourth Proportional to 93,305.98, 139,954.72 and 30,129.02

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Solution

The fourth proportional to 93,305.98, 139,954.72 and 30,129.02 is: 45,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,305.98 : 139,954.72 = 30,129.02 : x
  2. Step 2: Convert to fraction form
    93,305.98/139,954.72 = 30,129.02/x
  3. Step 3: Cross multiply
    93,305.98x = 139,954.72 × 30,129.02
  4. Step 4: Simplify right side
    93,305.98x = 4,216,698,557.97
  5. Step 5: Solve for x
    x = 4,216,698,557.97/93,305.98
  6. Step 6: Final answer
    x = 45,192.16

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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.