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Finding the Fourth Proportional to 303,680.42, 455,473.91 and 101,280.08

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Solution

The fourth proportional to 303,680.42, 455,473.91 and 101,280.08 is: 151,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,680.42 : 455,473.91 = 101,280.08 : x
  2. Step 2: Convert to fraction form
    303,680.42/455,473.91 = 101,280.08/x
  3. Step 3: Cross multiply
    303,680.42x = 455,473.91 × 101,280.08
  4. Step 4: Simplify right side
    303,680.42x = 46,130,434,042.71
  5. Step 5: Solve for x
    x = 46,130,434,042.71/303,680.42
  6. Step 6: Final answer
    x = 151,904.54

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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.