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Finding the Fourth Proportional to 307,218.60, 460,827.90 and 157,409.10

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Solution

The fourth proportional to 307,218.60, 460,827.90 and 157,409.10 is: 236,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,218.60 : 460,827.90 = 157,409.10 : x
  2. Step 2: Convert to fraction form
    307,218.60/460,827.90 = 157,409.10/x
  3. Step 3: Cross multiply
    307,218.60x = 460,827.90 × 157,409.10
  4. Step 4: Simplify right side
    307,218.60x = 72,538,504,993.89
  5. Step 5: Solve for x
    x = 72,538,504,993.89/307,218.60
  6. Step 6: Final answer
    x = 236,113.65

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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.