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Finding the Fourth Proportional to 96,670.40, 144,890.40 and 40,510.40

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Solution

The fourth proportional to 96,670.40, 144,890.40 and 40,510.40 is: 60,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,670.40 : 144,890.40 = 40,510.40 : x
  2. Step 2: Convert to fraction form
    96,670.40/144,890.40 = 40,510.40/x
  3. Step 3: Cross multiply
    96,670.40x = 144,890.40 × 40,510.40
  4. Step 4: Simplify right side
    96,670.40x = 5,869,568,060.16
  5. Step 5: Solve for x
    x = 5,869,568,060.16/96,670.40
  6. Step 6: Final answer
    x = 60,717.32

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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.