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Finding the Fourth Proportional to 186,271.71, 257,047.81 and 105,694.42

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Solution

The fourth proportional to 186,271.71, 257,047.81 and 105,694.42 is: 145,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,271.71 : 257,047.81 = 105,694.42 : x
  2. Step 2: Convert to fraction form
    186,271.71/257,047.81 = 105,694.42/x
  3. Step 3: Cross multiply
    186,271.71x = 257,047.81 × 105,694.42
  4. Step 4: Simplify right side
    186,271.71x = 27,168,519,190.22
  5. Step 5: Solve for x
    x = 27,168,519,190.22/186,271.71
  6. Step 6: Final answer
    x = 145,854.24

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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.