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Finding the Fourth Proportional to 93,027.60, 139,541.40 and 85,154.40

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Solution

The fourth proportional to 93,027.60, 139,541.40 and 85,154.40 is: 127,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,027.60 : 139,541.40 = 85,154.40 : x
  2. Step 2: Convert to fraction form
    93,027.60/139,541.40 = 85,154.40/x
  3. Step 3: Cross multiply
    93,027.60x = 139,541.40 × 85,154.40
  4. Step 4: Simplify right side
    93,027.60x = 11,882,564,192.16
  5. Step 5: Solve for x
    x = 11,882,564,192.16/93,027.60
  6. Step 6: Final answer
    x = 127,731.60

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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.