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Finding the Fourth Proportional to 352,164, 528,323.76 and 130,548

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Solution

The fourth proportional to 352,164, 528,323.76 and 130,548 is: 195,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,164 : 528,323.76 = 130,548 : x
  2. Step 2: Convert to fraction form
    352,164/528,323.76 = 130,548/x
  3. Step 3: Cross multiply
    352,164x = 528,323.76 × 130,548
  4. Step 4: Simplify right side
    352,164x = 68,971,610,220.48
  5. Step 5: Solve for x
    x = 68,971,610,220.48/352,164
  6. Step 6: Final answer
    x = 195,850.83

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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.