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Finding the Fourth Proportional to 528,186.69, 792,265.91 and 149,133.42

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Solution

The fourth proportional to 528,186.69, 792,265.91 and 149,133.42 is: 223,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,186.69 : 792,265.91 = 149,133.42 : x
  2. Step 2: Convert to fraction form
    528,186.69/792,265.91 = 149,133.42/x
  3. Step 3: Cross multiply
    528,186.69x = 792,265.91 × 149,133.42
  4. Step 4: Simplify right side
    528,186.69x = 118,153,323,962.05
  5. Step 5: Solve for x
    x = 118,153,323,962.05/528,186.69
  6. Step 6: Final answer
    x = 223,696.14

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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.