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Finding the Fourth Proportional to 186,417.71, 257,168.49 and 126,009.44

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Solution

The fourth proportional to 186,417.71, 257,168.49 and 126,009.44 is: 173,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,417.71 : 257,168.49 = 126,009.44 : x
  2. Step 2: Convert to fraction form
    186,417.71/257,168.49 = 126,009.44/x
  3. Step 3: Cross multiply
    186,417.71x = 257,168.49 × 126,009.44
  4. Step 4: Simplify right side
    186,417.71x = 32,405,657,410.55
  5. Step 5: Solve for x
    x = 32,405,657,410.55/186,417.71
  6. Step 6: Final answer
    x = 173,833.58

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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.