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Finding the Fourth Proportional to 243,256.09, 364,918.96 and 74,790.56

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Solution

The fourth proportional to 243,256.09, 364,918.96 and 74,790.56 is: 112,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,256.09 : 364,918.96 = 74,790.56 : x
  2. Step 2: Convert to fraction form
    243,256.09/364,918.96 = 74,790.56/x
  3. Step 3: Cross multiply
    243,256.09x = 364,918.96 × 74,790.56
  4. Step 4: Simplify right side
    243,256.09x = 27,292,494,098.34
  5. Step 5: Solve for x
    x = 27,292,494,098.34/243,256.09
  6. Step 6: Final answer
    x = 112,196.55

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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.