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Finding the Fourth Proportional to 211,166.01, 316,853.10 and 98,853.84

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Solution

The fourth proportional to 211,166.01, 316,853.10 and 98,853.84 is: 148,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,166.01 : 316,853.10 = 98,853.84 : x
  2. Step 2: Convert to fraction form
    211,166.01/316,853.10 = 98,853.84/x
  3. Step 3: Cross multiply
    211,166.01x = 316,853.10 × 98,853.84
  4. Step 4: Simplify right side
    211,166.01x = 31,322,145,650.90
  5. Step 5: Solve for x
    x = 31,322,145,650.90/211,166.01
  6. Step 6: Final answer
    x = 148,329.49

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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.