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Finding the Fourth Proportional to 202,975.93, 280,102.76 and 112,326.60

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Solution

The fourth proportional to 202,975.93, 280,102.76 and 112,326.60 is: 155,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,975.93 : 280,102.76 = 112,326.60 : x
  2. Step 2: Convert to fraction form
    202,975.93/280,102.76 = 112,326.60/x
  3. Step 3: Cross multiply
    202,975.93x = 280,102.76 × 112,326.60
  4. Step 4: Simplify right side
    202,975.93x = 31,462,990,015.82
  5. Step 5: Solve for x
    x = 31,462,990,015.82/202,975.93
  6. Step 6: Final answer
    x = 155,008.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.