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Finding the Fourth Proportional to 134,999.70, 202,499.55 and 127,782.60

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Solution

The fourth proportional to 134,999.70, 202,499.55 and 127,782.60 is: 191,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,999.70 : 202,499.55 = 127,782.60 : x
  2. Step 2: Convert to fraction form
    134,999.70/202,499.55 = 127,782.60/x
  3. Step 3: Cross multiply
    134,999.70x = 202,499.55 × 127,782.60
  4. Step 4: Simplify right side
    134,999.70x = 25,875,918,997.83
  5. Step 5: Solve for x
    x = 25,875,918,997.83/134,999.70
  6. Step 6: Final answer
    x = 191,673.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.