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Finding the Fourth Proportional to 201,897.30, 302,845.95 and 127,101.90

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Solution

The fourth proportional to 201,897.30, 302,845.95 and 127,101.90 is: 190,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,897.30 : 302,845.95 = 127,101.90 : x
  2. Step 2: Convert to fraction form
    201,897.30/302,845.95 = 127,101.90/x
  3. Step 3: Cross multiply
    201,897.30x = 302,845.95 × 127,101.90
  4. Step 4: Simplify right side
    201,897.30x = 38,492,295,652.31
  5. Step 5: Solve for x
    x = 38,492,295,652.31/201,897.30
  6. Step 6: Final answer
    x = 190,652.85

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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.