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Finding the Fourth Proportional to 355,427.34, 533,289.34 and 155,890.92

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Solution

The fourth proportional to 355,427.34, 533,289.34 and 155,890.92 is: 233,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,427.34 : 533,289.34 = 155,890.92 : x
  2. Step 2: Convert to fraction form
    355,427.34/533,289.34 = 155,890.92/x
  3. Step 3: Cross multiply
    355,427.34x = 533,289.34 × 155,890.92
  4. Step 4: Simplify right side
    355,427.34x = 83,134,968,033.49
  5. Step 5: Solve for x
    x = 83,134,968,033.49/355,427.34
  6. Step 6: Final answer
    x = 233,901.45

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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.