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Finding the Fourth Proportional to 84,888.70, 127,333.05 and 40,536.70

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Solution

The fourth proportional to 84,888.70, 127,333.05 and 40,536.70 is: 60,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,888.70 : 127,333.05 = 40,536.70 : x
  2. Step 2: Convert to fraction form
    84,888.70/127,333.05 = 40,536.70/x
  3. Step 3: Cross multiply
    84,888.70x = 127,333.05 × 40,536.70
  4. Step 4: Simplify right side
    84,888.70x = 5,161,661,647.94
  5. Step 5: Solve for x
    x = 5,161,661,647.94/84,888.70
  6. Step 6: Final answer
    x = 60,805.05

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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.