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Finding the Fourth Proportional to 357,504.28, 536,255.80 and 91,264.76

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Solution

The fourth proportional to 357,504.28, 536,255.80 and 91,264.76 is: 136,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,504.28 : 536,255.80 = 91,264.76 : x
  2. Step 2: Convert to fraction form
    357,504.28/536,255.80 = 91,264.76/x
  3. Step 3: Cross multiply
    357,504.28x = 536,255.80 × 91,264.76
  4. Step 4: Simplify right side
    357,504.28x = 48,941,256,885.61
  5. Step 5: Solve for x
    x = 48,941,256,885.61/357,504.28
  6. Step 6: Final answer
    x = 136,896.98

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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.