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Finding the Fourth Proportional to 211,910.96, 317,570.88 and 159,258.80

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Solution

The fourth proportional to 211,910.96, 317,570.88 and 159,258.80 is: 238,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,910.96 : 317,570.88 = 159,258.80 : x
  2. Step 2: Convert to fraction form
    211,910.96/317,570.88 = 159,258.80/x
  3. Step 3: Cross multiply
    211,910.96x = 317,570.88 × 159,258.80
  4. Step 4: Simplify right side
    211,910.96x = 50,575,957,263.74
  5. Step 5: Solve for x
    x = 50,575,957,263.74/211,910.96
  6. Step 6: Final answer
    x = 238,666.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.