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Finding the Fourth Proportional to 186,657.87, 279,987.92 and 46,416.49

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Solution

The fourth proportional to 186,657.87, 279,987.92 and 46,416.49 is: 69,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,657.87 : 279,987.92 = 46,416.49 : x
  2. Step 2: Convert to fraction form
    186,657.87/279,987.92 = 46,416.49/x
  3. Step 3: Cross multiply
    186,657.87x = 279,987.92 × 46,416.49
  4. Step 4: Simplify right side
    186,657.87x = 12,996,056,606.70
  5. Step 5: Solve for x
    x = 12,996,056,606.70/186,657.87
  6. Step 6: Final answer
    x = 69,625.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.