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Finding the Fourth Proportional to 122,322.80, 168,807.16 and 73,918.08

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Solution

The fourth proportional to 122,322.80, 168,807.16 and 73,918.08 is: 102,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,322.80 : 168,807.16 = 73,918.08 : x
  2. Step 2: Convert to fraction form
    122,322.80/168,807.16 = 73,918.08/x
  3. Step 3: Cross multiply
    122,322.80x = 168,807.16 × 73,918.08
  4. Step 4: Simplify right side
    122,322.80x = 12,477,901,157.45
  5. Step 5: Solve for x
    x = 12,477,901,157.45/122,322.80
  6. Step 6: Final answer
    x = 102,007.98

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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.