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Finding the Fourth Proportional to 186,368.50, 257,175.30 and 105,797.62

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Solution

The fourth proportional to 186,368.50, 257,175.30 and 105,797.62 is: 145,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,368.50 : 257,175.30 = 105,797.62 : x
  2. Step 2: Convert to fraction form
    186,368.50/257,175.30 = 105,797.62/x
  3. Step 3: Cross multiply
    186,368.50x = 257,175.30 × 105,797.62
  4. Step 4: Simplify right side
    186,368.50x = 27,208,534,662.79
  5. Step 5: Solve for x
    x = 27,208,534,662.79/186,368.50
  6. Step 6: Final answer
    x = 145,993.21

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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.