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Finding the Fourth Proportional to 144,002.90, 201,137.50 and 144,002.90

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Solution

The fourth proportional to 144,002.90, 201,137.50 and 144,002.90 is: 201,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.90 : 201,137.50 = 144,002.90 : x
  2. Step 2: Convert to fraction form
    144,002.90/201,137.50 = 144,002.90/x
  3. Step 3: Cross multiply
    144,002.90x = 201,137.50 × 144,002.90
  4. Step 4: Simplify right side
    144,002.90x = 28,964,383,298.75
  5. Step 5: Solve for x
    x = 28,964,383,298.75/144,002.90
  6. Step 6: Final answer
    x = 201,137.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.