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Finding the Fourth Proportional to 237,056.40, 355,123.80 and 131,686.80

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Solution

The fourth proportional to 237,056.40, 355,123.80 and 131,686.80 is: 197,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,056.40 : 355,123.80 = 131,686.80 : x
  2. Step 2: Convert to fraction form
    237,056.40/355,123.80 = 131,686.80/x
  3. Step 3: Cross multiply
    237,056.40x = 355,123.80 × 131,686.80
  4. Step 4: Simplify right side
    237,056.40x = 46,765,116,825.84
  5. Step 5: Solve for x
    x = 46,765,116,825.84/237,056.40
  6. Step 6: Final answer
    x = 197,274.22

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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.