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Finding the Fourth Proportional to 243,010.20, 364,223.70 and 124,620.60

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Solution

The fourth proportional to 243,010.20, 364,223.70 and 124,620.60 is: 186,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,010.20 : 364,223.70 = 124,620.60 : x
  2. Step 2: Convert to fraction form
    243,010.20/364,223.70 = 124,620.60/x
  3. Step 3: Cross multiply
    243,010.20x = 364,223.70 × 124,620.60
  4. Step 4: Simplify right side
    243,010.20x = 45,389,776,028.22
  5. Step 5: Solve for x
    x = 45,389,776,028.22/243,010.20
  6. Step 6: Final answer
    x = 186,781.36

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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.