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Finding the Fourth Proportional to 207,995.77, 312,040.32 and 65,849.54

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Solution

The fourth proportional to 207,995.77, 312,040.32 and 65,849.54 is: 98,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,995.77 : 312,040.32 = 65,849.54 : x
  2. Step 2: Convert to fraction form
    207,995.77/312,040.32 = 65,849.54/x
  3. Step 3: Cross multiply
    207,995.77x = 312,040.32 × 65,849.54
  4. Step 4: Simplify right side
    207,995.77x = 20,547,711,533.45
  5. Step 5: Solve for x
    x = 20,547,711,533.45/207,995.77
  6. Step 6: Final answer
    x = 98,789.08

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1.5x scale

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.