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Finding the Fourth Proportional to 86,303.64, 129,452.22 and 35,701.32

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Solution

The fourth proportional to 86,303.64, 129,452.22 and 35,701.32 is: 53,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,303.64 : 129,452.22 = 35,701.32 : x
  2. Step 2: Convert to fraction form
    86,303.64/129,452.22 = 35,701.32/x
  3. Step 3: Cross multiply
    86,303.64x = 129,452.22 × 35,701.32
  4. Step 4: Simplify right side
    86,303.64x = 4,621,615,130.93
  5. Step 5: Solve for x
    x = 4,621,615,130.93/86,303.64
  6. Step 6: Final answer
    x = 53,550.64

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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.