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Finding the Fourth Proportional to 186,118.40, 256,889.02 and 105,593.06

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Solution

The fourth proportional to 186,118.40, 256,889.02 and 105,593.06 is: 145,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,118.40 : 256,889.02 = 105,593.06 : x
  2. Step 2: Convert to fraction form
    186,118.40/256,889.02 = 105,593.06/x
  3. Step 3: Cross multiply
    186,118.40x = 256,889.02 × 105,593.06
  4. Step 4: Simplify right side
    186,118.40x = 27,125,698,080.44
  5. Step 5: Solve for x
    x = 27,125,698,080.44/186,118.40
  6. Step 6: Final answer
    x = 145,744.31

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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.