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Finding the Fourth Proportional to 140,312.94, 210,471.24 and 46,818.69

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Solution

The fourth proportional to 140,312.94, 210,471.24 and 46,818.69 is: 70,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,312.94 : 210,471.24 = 46,818.69 : x
  2. Step 2: Convert to fraction form
    140,312.94/210,471.24 = 46,818.69/x
  3. Step 3: Cross multiply
    140,312.94x = 210,471.24 × 46,818.69
  4. Step 4: Simplify right side
    140,312.94x = 9,853,987,739.48
  5. Step 5: Solve for x
    x = 9,853,987,739.48/140,312.94
  6. Step 6: Final answer
    x = 70,228.65

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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.