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Finding the Fourth Proportional to 202,445.46, 279,374.76 and 113,021.46

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Solution

The fourth proportional to 202,445.46, 279,374.76 and 113,021.46 is: 155,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,445.46 : 279,374.76 = 113,021.46 : x
  2. Step 2: Convert to fraction form
    202,445.46/279,374.76 = 113,021.46/x
  3. Step 3: Cross multiply
    202,445.46x = 279,374.76 × 113,021.46
  4. Step 4: Simplify right side
    202,445.46x = 31,575,343,262.35
  5. Step 5: Solve for x
    x = 31,575,343,262.35/202,445.46
  6. Step 6: Final answer
    x = 155,969.63

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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.