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Finding the Fourth Proportional to 190,874.40, 286,603.20 and 146,551.20

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Solution

The fourth proportional to 190,874.40, 286,603.20 and 146,551.20 is: 220,050.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,874.40 : 286,603.20 = 146,551.20 : x
  2. Step 2: Convert to fraction form
    190,874.40/286,603.20 = 146,551.20/x
  3. Step 3: Cross multiply
    190,874.40x = 286,603.20 × 146,551.20
  4. Step 4: Simplify right side
    190,874.40x = 42,002,042,883.84
  5. Step 5: Solve for x
    x = 42,002,042,883.84/190,874.40
  6. Step 6: Final answer
    x = 220,050.69

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1.5x scale

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.