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Finding the Fourth Proportional to 353,176.41, 530,097.53 and 128,753.76

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Solution

The fourth proportional to 353,176.41, 530,097.53 and 128,753.76 is: 193,252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,176.41 : 530,097.53 = 128,753.76 : x
  2. Step 2: Convert to fraction form
    353,176.41/530,097.53 = 128,753.76/x
  3. Step 3: Cross multiply
    353,176.41x = 530,097.53 × 128,753.76
  4. Step 4: Simplify right side
    353,176.41x = 68,252,049,510.44
  5. Step 5: Solve for x
    x = 68,252,049,510.44/353,176.41
  6. Step 6: Final answer
    x = 193,252.01

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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.