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Finding the Fourth Proportional to 371,013.40, 556,827.30 and 171,640.60

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Solution

The fourth proportional to 371,013.40, 556,827.30 and 171,640.60 is: 257,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,013.40 : 556,827.30 = 171,640.60 : x
  2. Step 2: Convert to fraction form
    371,013.40/556,827.30 = 171,640.60/x
  3. Step 3: Cross multiply
    371,013.40x = 556,827.30 × 171,640.60
  4. Step 4: Simplify right side
    371,013.40x = 95,574,171,868.38
  5. Step 5: Solve for x
    x = 95,574,171,868.38/371,013.40
  6. Step 6: Final answer
    x = 257,603.02

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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.