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Finding the Fourth Proportional to 404,597.40, 607,139.10 and 167,915.40

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Solution

The fourth proportional to 404,597.40, 607,139.10 and 167,915.40 is: 251,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,597.40 : 607,139.10 = 167,915.40 : x
  2. Step 2: Convert to fraction form
    404,597.40/607,139.10 = 167,915.40/x
  3. Step 3: Cross multiply
    404,597.40x = 607,139.10 × 167,915.40
  4. Step 4: Simplify right side
    404,597.40x = 101,948,004,832.14
  5. Step 5: Solve for x
    x = 101,948,004,832.14/404,597.40
  6. Step 6: Final answer
    x = 251,973.95

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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.