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Finding the Fourth Proportional to 253,412.70, 349,674.93 and 151,416.60

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Solution

The fourth proportional to 253,412.70, 349,674.93 and 151,416.60 is: 208,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,412.70 : 349,674.93 = 151,416.60 : x
  2. Step 2: Convert to fraction form
    253,412.70/349,674.93 = 151,416.60/x
  3. Step 3: Cross multiply
    253,412.70x = 349,674.93 × 151,416.60
  4. Step 4: Simplify right side
    253,412.70x = 52,946,589,005.84
  5. Step 5: Solve for x
    x = 52,946,589,005.84/253,412.70
  6. Step 6: Final answer
    x = 208,934.24

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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.