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Finding the Fourth Proportional to 306,719.80, 460,079.70 and 96,357.40

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Solution

The fourth proportional to 306,719.80, 460,079.70 and 96,357.40 is: 144,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,719.80 : 460,079.70 = 96,357.40 : x
  2. Step 2: Convert to fraction form
    306,719.80/460,079.70 = 96,357.40/x
  3. Step 3: Cross multiply
    306,719.80x = 460,079.70 × 96,357.40
  4. Step 4: Simplify right side
    306,719.80x = 44,332,083,684.78
  5. Step 5: Solve for x
    x = 44,332,083,684.78/306,719.80
  6. Step 6: Final answer
    x = 144,536.10

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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.