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Finding the Fourth Proportional to 93,116.60, 139,710.74 and 43,222.20

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Solution

The fourth proportional to 93,116.60, 139,710.74 and 43,222.20 is: 64,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,116.60 : 139,710.74 = 43,222.20 : x
  2. Step 2: Convert to fraction form
    93,116.60/139,710.74 = 43,222.20/x
  3. Step 3: Cross multiply
    93,116.60x = 139,710.74 × 43,222.20
  4. Step 4: Simplify right side
    93,116.60x = 6,038,605,546.43
  5. Step 5: Solve for x
    x = 6,038,605,546.43/93,116.60
  6. Step 6: Final answer
    x = 64,849.94

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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.