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Finding the Fourth Proportional to 251,075.64, 346,483.20 and 136,353.48

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Solution

The fourth proportional to 251,075.64, 346,483.20 and 136,353.48 is: 188,167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,075.64 : 346,483.20 = 136,353.48 : x
  2. Step 2: Convert to fraction form
    251,075.64/346,483.20 = 136,353.48/x
  3. Step 3: Cross multiply
    251,075.64x = 346,483.20 × 136,353.48
  4. Step 4: Simplify right side
    251,075.64x = 47,244,190,081.54
  5. Step 5: Solve for x
    x = 47,244,190,081.54/251,075.64
  6. Step 6: Final answer
    x = 188,167.16

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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.