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Finding the Fourth Proportional to 186,718.56, 280,239.60 and 98,034.72

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Solution

The fourth proportional to 186,718.56, 280,239.60 and 98,034.72 is: 147,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,718.56 : 280,239.60 = 98,034.72 : x
  2. Step 2: Convert to fraction form
    186,718.56/280,239.60 = 98,034.72/x
  3. Step 3: Cross multiply
    186,718.56x = 280,239.60 × 98,034.72
  4. Step 4: Simplify right side
    186,718.56x = 27,473,210,718.91
  5. Step 5: Solve for x
    x = 27,473,210,718.91/186,718.56
  6. Step 6: Final answer
    x = 147,137.01

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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.