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Finding the Fourth Proportional to 255,111.05, 351,935.45 and 164,496.12

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Solution

The fourth proportional to 255,111.05, 351,935.45 and 164,496.12 is: 226,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,111.05 : 351,935.45 = 164,496.12 : x
  2. Step 2: Convert to fraction form
    255,111.05/351,935.45 = 164,496.12/x
  3. Step 3: Cross multiply
    255,111.05x = 351,935.45 × 164,496.12
  4. Step 4: Simplify right side
    255,111.05x = 57,892,017,395.00
  5. Step 5: Solve for x
    x = 57,892,017,395.00/255,111.05
  6. Step 6: Final answer
    x = 226,928.69

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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.