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Finding the Fourth Proportional to 190,870.60, 286,305.90 and 50,643.40

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Solution

The fourth proportional to 190,870.60, 286,305.90 and 50,643.40 is: 75,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,870.60 : 286,305.90 = 50,643.40 : x
  2. Step 2: Convert to fraction form
    190,870.60/286,305.90 = 50,643.40/x
  3. Step 3: Cross multiply
    190,870.60x = 286,305.90 × 50,643.40
  4. Step 4: Simplify right side
    190,870.60x = 14,499,504,216.06
  5. Step 5: Solve for x
    x = 14,499,504,216.06/190,870.60
  6. Step 6: Final answer
    x = 75,965.10

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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.