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Finding the Fourth Proportional to 290,636.01, 435,921.62 and 101,063.61

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Solution

The fourth proportional to 290,636.01, 435,921.62 and 101,063.61 is: 151,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,636.01 : 435,921.62 = 101,063.61 : x
  2. Step 2: Convert to fraction form
    290,636.01/435,921.62 = 101,063.61/x
  3. Step 3: Cross multiply
    290,636.01x = 435,921.62 × 101,063.61
  4. Step 4: Simplify right side
    290,636.01x = 44,055,812,088.93
  5. Step 5: Solve for x
    x = 44,055,812,088.93/290,636.01
  6. Step 6: Final answer
    x = 151,584.15

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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.