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Finding the Fourth Proportional to 186,565.87, 257,460.99 and 105,993.55

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Solution

The fourth proportional to 186,565.87, 257,460.99 and 105,993.55 is: 146,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,565.87 : 257,460.99 = 105,993.55 : x
  2. Step 2: Convert to fraction form
    186,565.87/257,460.99 = 105,993.55/x
  3. Step 3: Cross multiply
    186,565.87x = 257,460.99 × 105,993.55
  4. Step 4: Simplify right side
    186,565.87x = 27,289,204,316.61
  5. Step 5: Solve for x
    x = 27,289,204,316.61/186,565.87
  6. Step 6: Final answer
    x = 146,271.15

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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.