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Finding the Fourth Proportional to 293,012.80, 439,461.60 and 96,020.80

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Solution

The fourth proportional to 293,012.80, 439,461.60 and 96,020.80 is: 144,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,012.80 : 439,461.60 = 96,020.80 : x
  2. Step 2: Convert to fraction form
    293,012.80/439,461.60 = 96,020.80/x
  3. Step 3: Cross multiply
    293,012.80x = 439,461.60 × 96,020.80
  4. Step 4: Simplify right side
    293,012.80x = 42,197,454,401.28
  5. Step 5: Solve for x
    x = 42,197,454,401.28/293,012.80
  6. Step 6: Final answer
    x = 144,012.32

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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.