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Finding the Fourth Proportional to 201,726.80, 302,590.20 and 191,358.80

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Solution

The fourth proportional to 201,726.80, 302,590.20 and 191,358.80 is: 287,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,726.80 : 302,590.20 = 191,358.80 : x
  2. Step 2: Convert to fraction form
    201,726.80/302,590.20 = 191,358.80/x
  3. Step 3: Cross multiply
    201,726.80x = 302,590.20 × 191,358.80
  4. Step 4: Simplify right side
    201,726.80x = 57,903,297,563.76
  5. Step 5: Solve for x
    x = 57,903,297,563.76/201,726.80
  6. Step 6: Final answer
    x = 287,038.20

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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.