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Finding the Fourth Proportional to 171,703.36, 257,533.16 and 66,450.32

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Solution

The fourth proportional to 171,703.36, 257,533.16 and 66,450.32 is: 99,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,703.36 : 257,533.16 = 66,450.32 : x
  2. Step 2: Convert to fraction form
    171,703.36/257,533.16 = 66,450.32/x
  3. Step 3: Cross multiply
    171,703.36x = 257,533.16 × 66,450.32
  4. Step 4: Simplify right side
    171,703.36x = 17,113,160,892.61
  5. Step 5: Solve for x
    x = 17,113,160,892.61/171,703.36
  6. Step 6: Final answer
    x = 99,667.01

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1.5x scale

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.