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Finding the Fourth Proportional to 237,292.16, 355,938.40 and 71,080

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Solution

The fourth proportional to 237,292.16, 355,938.40 and 71,080 is: 106,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,292.16 : 355,938.40 = 71,080 : x
  2. Step 2: Convert to fraction form
    237,292.16/355,938.40 = 71,080/x
  3. Step 3: Cross multiply
    237,292.16x = 355,938.40 × 71,080
  4. Step 4: Simplify right side
    237,292.16x = 25,300,101,472
  5. Step 5: Solve for x
    x = 25,300,101,472/237,292.16
  6. Step 6: Final answer
    x = 106,620.05

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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.