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Finding the Fourth Proportional to 190,698.80, 286,048.20 and 146,548.40

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Solution

The fourth proportional to 190,698.80, 286,048.20 and 146,548.40 is: 219,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,698.80 : 286,048.20 = 146,548.40 : x
  2. Step 2: Convert to fraction form
    190,698.80/286,048.20 = 146,548.40/x
  3. Step 3: Cross multiply
    190,698.80x = 286,048.20 × 146,548.40
  4. Step 4: Simplify right side
    190,698.80x = 41,919,906,032.88
  5. Step 5: Solve for x
    x = 41,919,906,032.88/190,698.80
  6. Step 6: Final answer
    x = 219,822.60

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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.