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Finding the Fourth Proportional to 100,388.80, 150,528.19 and 46,294.76

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Solution

The fourth proportional to 100,388.80, 150,528.19 and 46,294.76 is: 69,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,388.80 : 150,528.19 = 46,294.76 : x
  2. Step 2: Convert to fraction form
    100,388.80/150,528.19 = 46,294.76/x
  3. Step 3: Cross multiply
    100,388.80x = 150,528.19 × 46,294.76
  4. Step 4: Simplify right side
    100,388.80x = 6,968,666,429.28
  5. Step 5: Solve for x
    x = 6,968,666,429.28/100,388.80
  6. Step 6: Final answer
    x = 69,416.77

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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.