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Finding the Fourth Proportional to 86,165.01, 118,918.40 and 48,439.26

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Solution

The fourth proportional to 86,165.01, 118,918.40 and 48,439.26 is: 66,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,165.01 : 118,918.40 = 48,439.26 : x
  2. Step 2: Convert to fraction form
    86,165.01/118,918.40 = 48,439.26/x
  3. Step 3: Cross multiply
    86,165.01x = 118,918.40 × 48,439.26
  4. Step 4: Simplify right side
    86,165.01x = 5,760,319,054.19
  5. Step 5: Solve for x
    x = 5,760,319,054.19/86,165.01
  6. Step 6: Final answer
    x = 66,852.18

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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.