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Finding the Fourth Proportional to 93,099.54, 128,503.74 and 54,881.22

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Solution

The fourth proportional to 93,099.54, 128,503.74 and 54,881.22 is: 75,751.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,099.54 : 128,503.74 = 54,881.22 : x
  2. Step 2: Convert to fraction form
    93,099.54/128,503.74 = 54,881.22/x
  3. Step 3: Cross multiply
    93,099.54x = 128,503.74 × 54,881.22
  4. Step 4: Simplify right side
    93,099.54x = 7,052,442,025.76
  5. Step 5: Solve for x
    x = 7,052,442,025.76/93,099.54
  6. Step 6: Final answer
    x = 75,751.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.