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Finding the Fourth Proportional to 190,750.80, 286,817.40 and 186,603.60

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Solution

The fourth proportional to 190,750.80, 286,817.40 and 186,603.60 is: 280,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,750.80 : 286,817.40 = 186,603.60 : x
  2. Step 2: Convert to fraction form
    190,750.80/286,817.40 = 186,603.60/x
  3. Step 3: Cross multiply
    190,750.80x = 286,817.40 × 186,603.60
  4. Step 4: Simplify right side
    190,750.80x = 53,521,159,382.64
  5. Step 5: Solve for x
    x = 53,521,159,382.64/190,750.80
  6. Step 6: Final answer
    x = 280,581.57

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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.