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Finding the Fourth Proportional to 88,705.98, 122,199.90 and 75,918.12

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Solution

The fourth proportional to 88,705.98, 122,199.90 and 75,918.12 is: 104,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,705.98 : 122,199.90 = 75,918.12 : x
  2. Step 2: Convert to fraction form
    88,705.98/122,199.90 = 75,918.12/x
  3. Step 3: Cross multiply
    88,705.98x = 122,199.90 × 75,918.12
  4. Step 4: Simplify right side
    88,705.98x = 9,277,186,672.19
  5. Step 5: Solve for x
    x = 9,277,186,672.19/88,705.98
  6. Step 6: Final answer
    x = 104,583.55

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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.