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Finding the Fourth Proportional to 134,236.71, 200,916.78 and 98,688.63

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Solution

The fourth proportional to 134,236.71, 200,916.78 and 98,688.63 is: 147,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,236.71 : 200,916.78 = 98,688.63 : x
  2. Step 2: Convert to fraction form
    134,236.71/200,916.78 = 98,688.63/x
  3. Step 3: Cross multiply
    134,236.71x = 200,916.78 × 98,688.63
  4. Step 4: Simplify right side
    134,236.71x = 19,828,201,762.21
  5. Step 5: Solve for x
    x = 19,828,201,762.21/134,236.71
  6. Step 6: Final answer
    x = 147,710.73

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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.