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Finding the Fourth Proportional to 251,158, 346,598.19 and 137,988.04

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Solution

The fourth proportional to 251,158, 346,598.19 and 137,988.04 is: 190,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,158 : 346,598.19 = 137,988.04 : x
  2. Step 2: Convert to fraction form
    251,158/346,598.19 = 137,988.04/x
  3. Step 3: Cross multiply
    251,158x = 346,598.19 × 137,988.04
  4. Step 4: Simplify right side
    251,158x = 47,826,404,905.65
  5. Step 5: Solve for x
    x = 47,826,404,905.65/251,158
  6. Step 6: Final answer
    x = 190,423.58

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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.