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Finding the Fourth Proportional to 255,305.01, 352,307.12 and 140,561.31

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Solution

The fourth proportional to 255,305.01, 352,307.12 and 140,561.31 is: 193,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,305.01 : 352,307.12 = 140,561.31 : x
  2. Step 2: Convert to fraction form
    255,305.01/352,307.12 = 140,561.31/x
  3. Step 3: Cross multiply
    255,305.01x = 352,307.12 × 140,561.31
  4. Step 4: Simplify right side
    255,305.01x = 49,520,749,606.72
  5. Step 5: Solve for x
    x = 49,520,749,606.72/255,305.01
  6. Step 6: Final answer
    x = 193,967.01

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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.