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Finding the Fourth Proportional to 295,637.60, 443,456.40 and 127,238.60

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Solution

The fourth proportional to 295,637.60, 443,456.40 and 127,238.60 is: 190,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,637.60 : 443,456.40 = 127,238.60 : x
  2. Step 2: Convert to fraction form
    295,637.60/443,456.40 = 127,238.60/x
  3. Step 3: Cross multiply
    295,637.60x = 443,456.40 × 127,238.60
  4. Step 4: Simplify right side
    295,637.60x = 56,424,771,497.04
  5. Step 5: Solve for x
    x = 56,424,771,497.04/295,637.60
  6. Step 6: Final answer
    x = 190,857.90

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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.