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Finding the Fourth Proportional to 151,762.60, 227,643.90 and 143,986.60

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Solution

The fourth proportional to 151,762.60, 227,643.90 and 143,986.60 is: 215,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,762.60 : 227,643.90 = 143,986.60 : x
  2. Step 2: Convert to fraction form
    151,762.60/227,643.90 = 143,986.60/x
  3. Step 3: Cross multiply
    151,762.60x = 227,643.90 × 143,986.60
  4. Step 4: Simplify right side
    151,762.60x = 32,777,671,171.74
  5. Step 5: Solve for x
    x = 32,777,671,171.74/151,762.60
  6. Step 6: Final answer
    x = 215,979.90

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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.