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Finding the Fourth Proportional to 93,223.54, 128,647.82 and 50,782.07

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Solution

The fourth proportional to 93,223.54, 128,647.82 and 50,782.07 is: 70,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.54 : 128,647.82 = 50,782.07 : x
  2. Step 2: Convert to fraction form
    93,223.54/128,647.82 = 50,782.07/x
  3. Step 3: Cross multiply
    93,223.54x = 128,647.82 × 50,782.07
  4. Step 4: Simplify right side
    93,223.54x = 6,533,001,703.44
  5. Step 5: Solve for x
    x = 6,533,001,703.44/93,223.54
  6. Step 6: Final answer
    x = 70,078.89

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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.