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Finding the Fourth Proportional to 93,057.36, 128,418.93 and 54,824.67

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Solution

The fourth proportional to 93,057.36, 128,418.93 and 54,824.67 is: 75,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,057.36 : 128,418.93 = 54,824.67 : x
  2. Step 2: Convert to fraction form
    93,057.36/128,418.93 = 54,824.67/x
  3. Step 3: Cross multiply
    93,057.36x = 128,418.93 × 54,824.67
  4. Step 4: Simplify right side
    93,057.36x = 7,040,525,459.00
  5. Step 5: Solve for x
    x = 7,040,525,459.00/93,057.36
  6. Step 6: Final answer
    x = 75,657.91

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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.