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Finding the Fourth Proportional to 253,334.40, 349,598.88 and 140,157.96

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Solution

The fourth proportional to 253,334.40, 349,598.88 and 140,157.96 is: 193,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,334.40 : 349,598.88 = 140,157.96 : x
  2. Step 2: Convert to fraction form
    253,334.40/349,598.88 = 140,157.96/x
  3. Step 3: Cross multiply
    253,334.40x = 349,598.88 × 140,157.96
  4. Step 4: Simplify right side
    253,334.40x = 48,999,065,839.08
  5. Step 5: Solve for x
    x = 48,999,065,839.08/253,334.40
  6. Step 6: Final answer
    x = 193,416.55

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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.