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Finding the Fourth Proportional to 93,452.67, 128,949.48 and 55,206.90

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Solution

The fourth proportional to 93,452.67, 128,949.48 and 55,206.90 is: 76,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,452.67 : 128,949.48 = 55,206.90 : x
  2. Step 2: Convert to fraction form
    93,452.67/128,949.48 = 55,206.90/x
  3. Step 3: Cross multiply
    93,452.67x = 128,949.48 × 55,206.90
  4. Step 4: Simplify right side
    93,452.67x = 7,118,901,047.41
  5. Step 5: Solve for x
    x = 7,118,901,047.41/93,452.67
  6. Step 6: Final answer
    x = 76,176.54

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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.