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Finding the Fourth Proportional to 335,075.90, 502,612.86 and 135,393.98

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Solution

The fourth proportional to 335,075.90, 502,612.86 and 135,393.98 is: 203,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,075.90 : 502,612.86 = 135,393.98 : x
  2. Step 2: Convert to fraction form
    335,075.90/502,612.86 = 135,393.98/x
  3. Step 3: Cross multiply
    335,075.90x = 502,612.86 × 135,393.98
  4. Step 4: Simplify right side
    335,075.90x = 68,050,755,514.58
  5. Step 5: Solve for x
    x = 68,050,755,514.58/335,075.90
  6. Step 6: Final answer
    x = 203,090.57

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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.