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Finding the Fourth Proportional to 277,119.96, 382,393.05 and 156,254.05

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Solution

The fourth proportional to 277,119.96, 382,393.05 and 156,254.05 is: 215,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,119.96 : 382,393.05 = 156,254.05 : x
  2. Step 2: Convert to fraction form
    277,119.96/382,393.05 = 156,254.05/x
  3. Step 3: Cross multiply
    277,119.96x = 382,393.05 × 156,254.05
  4. Step 4: Simplify right side
    277,119.96x = 59,750,460,842.39
  5. Step 5: Solve for x
    x = 59,750,460,842.39/277,119.96
  6. Step 6: Final answer
    x = 215,612.26

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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.