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Finding the Fourth Proportional to 100,387.92, 150,526.89 and 46,293.89

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Solution

The fourth proportional to 100,387.92, 150,526.89 and 46,293.89 is: 69,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,387.92 : 150,526.89 = 46,293.89 : x
  2. Step 2: Convert to fraction form
    100,387.92/150,526.89 = 46,293.89/x
  3. Step 3: Cross multiply
    100,387.92x = 150,526.89 × 46,293.89
  4. Step 4: Simplify right side
    100,387.92x = 6,968,474,535.07
  5. Step 5: Solve for x
    x = 6,968,474,535.07/100,387.92
  6. Step 6: Final answer
    x = 69,415.47

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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.