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Finding the Fourth Proportional to 86,094.54, 118,920.69 and 65,828.34

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Solution

The fourth proportional to 86,094.54, 118,920.69 and 65,828.34 is: 90,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,094.54 : 118,920.69 = 65,828.34 : x
  2. Step 2: Convert to fraction form
    86,094.54/118,920.69 = 65,828.34/x
  3. Step 3: Cross multiply
    86,094.54x = 118,920.69 × 65,828.34
  4. Step 4: Simplify right side
    86,094.54x = 7,828,351,614.35
  5. Step 5: Solve for x
    x = 7,828,351,614.35/86,094.54
  6. Step 6: Final answer
    x = 90,927.39

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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.