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Finding the Fourth Proportional to 199,995.98, 275,989.11 and 118,328.46

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Solution

The fourth proportional to 199,995.98, 275,989.11 and 118,328.46 is: 163,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,995.98 : 275,989.11 = 118,328.46 : x
  2. Step 2: Convert to fraction form
    199,995.98/275,989.11 = 118,328.46/x
  3. Step 3: Cross multiply
    199,995.98x = 275,989.11 × 118,328.46
  4. Step 4: Simplify right side
    199,995.98x = 32,657,364,884.38
  5. Step 5: Solve for x
    x = 32,657,364,884.38/199,995.98
  6. Step 6: Final answer
    x = 163,290.11

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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.