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Finding the Fourth Proportional to 215,752.50, 323,628.98 and 116,543.50

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Solution

The fourth proportional to 215,752.50, 323,628.98 and 116,543.50 is: 174,815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,752.50 : 323,628.98 = 116,543.50 : x
  2. Step 2: Convert to fraction form
    215,752.50/323,628.98 = 116,543.50/x
  3. Step 3: Cross multiply
    215,752.50x = 323,628.98 × 116,543.50
  4. Step 4: Simplify right side
    215,752.50x = 37,716,852,638.84
  5. Step 5: Solve for x
    x = 37,716,852,638.84/215,752.50
  6. Step 6: Final answer
    x = 174,815.37

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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.