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Finding the Fourth Proportional to 425,154.63, 586,686.42 and 234,168

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Solution

The fourth proportional to 425,154.63, 586,686.42 and 234,168 is: 323,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,154.63 : 586,686.42 = 234,168 : x
  2. Step 2: Convert to fraction form
    425,154.63/586,686.42 = 234,168/x
  3. Step 3: Cross multiply
    425,154.63x = 586,686.42 × 234,168
  4. Step 4: Simplify right side
    425,154.63x = 137,383,185,598.56
  5. Step 5: Solve for x
    x = 137,383,185,598.56/425,154.63
  6. Step 6: Final answer
    x = 323,136.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.