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Finding the Fourth Proportional to 252,998.34, 349,211.16 and 145,644.18

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Solution

The fourth proportional to 252,998.34, 349,211.16 and 145,644.18 is: 201,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,998.34 : 349,211.16 = 145,644.18 : x
  2. Step 2: Convert to fraction form
    252,998.34/349,211.16 = 145,644.18/x
  3. Step 3: Cross multiply
    252,998.34x = 349,211.16 × 145,644.18
  4. Step 4: Simplify right side
    252,998.34x = 50,860,573,045.05
  5. Step 5: Solve for x
    x = 50,860,573,045.05/252,998.34
  6. Step 6: Final answer
    x = 201,031.25

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1.5x scale

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.