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Finding the Fourth Proportional to 201,228.60, 301,842.90 and 134,743.80

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Solution

The fourth proportional to 201,228.60, 301,842.90 and 134,743.80 is: 202,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,228.60 : 301,842.90 = 134,743.80 : x
  2. Step 2: Convert to fraction form
    201,228.60/301,842.90 = 134,743.80/x
  3. Step 3: Cross multiply
    201,228.60x = 301,842.90 × 134,743.80
  4. Step 4: Simplify right side
    201,228.60x = 40,671,459,349.02
  5. Step 5: Solve for x
    x = 40,671,459,349.02/201,228.60
  6. Step 6: Final answer
    x = 202,115.70

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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.