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Finding the Fourth Proportional to 80,288.85, 110,810.40 and 46,290.69

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Solution

The fourth proportional to 80,288.85, 110,810.40 and 46,290.69 is: 63,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,288.85 : 110,810.40 = 46,290.69 : x
  2. Step 2: Convert to fraction form
    80,288.85/110,810.40 = 46,290.69/x
  3. Step 3: Cross multiply
    80,288.85x = 110,810.40 × 46,290.69
  4. Step 4: Simplify right side
    80,288.85x = 5,129,489,875.18
  5. Step 5: Solve for x
    x = 5,129,489,875.18/80,288.85
  6. Step 6: Final answer
    x = 63,887.95

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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.