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Finding the Fourth Proportional to 148,887.01, 205,496.48 and 91,575.59

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Solution

The fourth proportional to 148,887.01, 205,496.48 and 91,575.59 is: 126,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,887.01 : 205,496.48 = 91,575.59 : x
  2. Step 2: Convert to fraction form
    148,887.01/205,496.48 = 91,575.59/x
  3. Step 3: Cross multiply
    148,887.01x = 205,496.48 × 91,575.59
  4. Step 4: Simplify right side
    148,887.01x = 18,818,460,941.05
  5. Step 5: Solve for x
    x = 18,818,460,941.05/148,887.01
  6. Step 6: Final answer
    x = 126,394.25

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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.