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Finding the Fourth Proportional to 352,124.46, 528,177.27 and 99,422.28

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Solution

The fourth proportional to 352,124.46, 528,177.27 and 99,422.28 is: 149,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,124.46 : 528,177.27 = 99,422.28 : x
  2. Step 2: Convert to fraction form
    352,124.46/528,177.27 = 99,422.28/x
  3. Step 3: Cross multiply
    352,124.46x = 528,177.27 × 99,422.28
  4. Step 4: Simplify right side
    352,124.46x = 52,512,588,427.58
  5. Step 5: Solve for x
    x = 52,512,588,427.58/352,124.46
  6. Step 6: Final answer
    x = 149,130.76

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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.