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Finding the Fourth Proportional to 207,099.76, 310,253.84 and 173,580.34

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Solution

The fourth proportional to 207,099.76, 310,253.84 and 173,580.34 is: 260,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,099.76 : 310,253.84 = 173,580.34 : x
  2. Step 2: Convert to fraction form
    207,099.76/310,253.84 = 173,580.34/x
  3. Step 3: Cross multiply
    207,099.76x = 310,253.84 × 173,580.34
  4. Step 4: Simplify right side
    207,099.76x = 53,853,967,033.51
  5. Step 5: Solve for x
    x = 53,853,967,033.51/207,099.76
  6. Step 6: Final answer
    x = 260,038.77

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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.