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Finding the Fourth Proportional to 268,607.94, 370,611.90 and 172,999.59

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Solution

The fourth proportional to 268,607.94, 370,611.90 and 172,999.59 is: 238,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,607.94 : 370,611.90 = 172,999.59 : x
  2. Step 2: Convert to fraction form
    268,607.94/370,611.90 = 172,999.59/x
  3. Step 3: Cross multiply
    268,607.94x = 370,611.90 × 172,999.59
  4. Step 4: Simplify right side
    268,607.94x = 64,115,706,749.12
  5. Step 5: Solve for x
    x = 64,115,706,749.12/268,607.94
  6. Step 6: Final answer
    x = 238,696.25

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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.