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Finding the Fourth Proportional to 355,849.60, 533,774.76 and 145,487.54

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Solution

The fourth proportional to 355,849.60, 533,774.76 and 145,487.54 is: 218,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,849.60 : 533,774.76 = 145,487.54 : x
  2. Step 2: Convert to fraction form
    355,849.60/533,774.76 = 145,487.54/x
  3. Step 3: Cross multiply
    355,849.60x = 533,774.76 × 145,487.54
  4. Step 4: Simplify right side
    355,849.60x = 77,657,576,746.49
  5. Step 5: Solve for x
    x = 77,657,576,746.49/355,849.60
  6. Step 6: Final answer
    x = 218,231.46

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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.