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Finding the Fourth Proportional to 163,805.83, 225,995.57 and 99,295.81

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Solution

The fourth proportional to 163,805.83, 225,995.57 and 99,295.81 is: 136,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,805.83 : 225,995.57 = 99,295.81 : x
  2. Step 2: Convert to fraction form
    163,805.83/225,995.57 = 99,295.81/x
  3. Step 3: Cross multiply
    163,805.83x = 225,995.57 × 99,295.81
  4. Step 4: Simplify right side
    163,805.83x = 22,440,412,490.45
  5. Step 5: Solve for x
    x = 22,440,412,490.45/163,805.83
  6. Step 6: Final answer
    x = 136,993.98

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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.