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Finding the Fourth Proportional to 93,237.67, 128,808.60 and 75,301.55

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Solution

The fourth proportional to 93,237.67, 128,808.60 and 75,301.55 is: 104,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,237.67 : 128,808.60 = 75,301.55 : x
  2. Step 2: Convert to fraction form
    93,237.67/128,808.60 = 75,301.55/x
  3. Step 3: Cross multiply
    93,237.67x = 128,808.60 × 75,301.55
  4. Step 4: Simplify right side
    93,237.67x = 9,699,487,233.33
  5. Step 5: Solve for x
    x = 9,699,487,233.33/93,237.67
  6. Step 6: Final answer
    x = 104,029.70

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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.