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Finding the Fourth Proportional to 78,322.42, 108,003.22 and 46,485.16

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Solution

The fourth proportional to 78,322.42, 108,003.22 and 46,485.16 is: 64,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,322.42 : 108,003.22 = 46,485.16 : x
  2. Step 2: Convert to fraction form
    78,322.42/108,003.22 = 46,485.16/x
  3. Step 3: Cross multiply
    78,322.42x = 108,003.22 × 46,485.16
  4. Step 4: Simplify right side
    78,322.42x = 5,020,546,962.22
  5. Step 5: Solve for x
    x = 5,020,546,962.22/78,322.42
  6. Step 6: Final answer
    x = 64,101.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.