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Finding the Fourth Proportional to 86,802.32, 119,786.16 and 50,995.60

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Solution

The fourth proportional to 86,802.32, 119,786.16 and 50,995.60 is: 70,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,802.32 : 119,786.16 = 50,995.60 : x
  2. Step 2: Convert to fraction form
    86,802.32/119,786.16 = 50,995.60/x
  3. Step 3: Cross multiply
    86,802.32x = 119,786.16 × 50,995.60
  4. Step 4: Simplify right side
    86,802.32x = 6,108,567,100.90
  5. Step 5: Solve for x
    x = 6,108,567,100.90/86,802.32
  6. Step 6: Final answer
    x = 70,373.32

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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.