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Finding the Fourth Proportional to 265,207.74, 365,956.70 and 156,304.98

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Solution

The fourth proportional to 265,207.74, 365,956.70 and 156,304.98 is: 215,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,207.74 : 365,956.70 = 156,304.98 : x
  2. Step 2: Convert to fraction form
    265,207.74/365,956.70 = 156,304.98/x
  3. Step 3: Cross multiply
    265,207.74x = 365,956.70 × 156,304.98
  4. Step 4: Simplify right side
    265,207.74x = 57,200,854,674.37
  5. Step 5: Solve for x
    x = 57,200,854,674.37/265,207.74
  6. Step 6: Final answer
    x = 215,683.20

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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.