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Finding the Fourth Proportional to 210,772.92, 290,733.64 and 147,087.48

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Solution

The fourth proportional to 210,772.92, 290,733.64 and 147,087.48 is: 202,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,772.92 : 290,733.64 = 147,087.48 : x
  2. Step 2: Convert to fraction form
    210,772.92/290,733.64 = 147,087.48/x
  3. Step 3: Cross multiply
    210,772.92x = 290,733.64 × 147,087.48
  4. Step 4: Simplify right side
    210,772.92x = 42,763,278,458.83
  5. Step 5: Solve for x
    x = 42,763,278,458.83/210,772.92
  6. Step 6: Final answer
    x = 202,887.92

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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.