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Finding the Fourth Proportional to 291,935.39, 402,870.90 and 164,611.01

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Solution

The fourth proportional to 291,935.39, 402,870.90 and 164,611.01 is: 227,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,935.39 : 402,870.90 = 164,611.01 : x
  2. Step 2: Convert to fraction form
    291,935.39/402,870.90 = 164,611.01/x
  3. Step 3: Cross multiply
    291,935.39x = 402,870.90 × 164,611.01
  4. Step 4: Simplify right side
    291,935.39x = 66,316,983,734.25
  5. Step 5: Solve for x
    x = 66,316,983,734.25/291,935.39
  6. Step 6: Final answer
    x = 227,163.23

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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.