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Finding the Fourth Proportional to 355,460.61, 532,719.33 and 155,563.34

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Solution

The fourth proportional to 355,460.61, 532,719.33 and 155,563.34 is: 233,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,460.61 : 532,719.33 = 155,563.34 : x
  2. Step 2: Convert to fraction form
    355,460.61/532,719.33 = 155,563.34/x
  3. Step 3: Cross multiply
    355,460.61x = 532,719.33 × 155,563.34
  4. Step 4: Simplify right side
    355,460.61x = 82,871,598,257.36
  5. Step 5: Solve for x
    x = 82,871,598,257.36/355,460.61
  6. Step 6: Final answer
    x = 233,138.63

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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.