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Finding the Fourth Proportional to 186,374.10, 257,199.20 and 101,491.10

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Solution

The fourth proportional to 186,374.10, 257,199.20 and 101,491.10 is: 140,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,374.10 : 257,199.20 = 101,491.10 : x
  2. Step 2: Convert to fraction form
    186,374.10/257,199.20 = 101,491.10/x
  3. Step 3: Cross multiply
    186,374.10x = 257,199.20 × 101,491.10
  4. Step 4: Simplify right side
    186,374.10x = 26,103,427,933.67
  5. Step 5: Solve for x
    x = 26,103,427,933.67/186,374.10
  6. Step 6: Final answer
    x = 140,059.31

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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.