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Finding the Fourth Proportional to 310,751.48, 466,141.80 and 111,166.40

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Solution

The fourth proportional to 310,751.48, 466,141.80 and 111,166.40 is: 166,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,751.48 : 466,141.80 = 111,166.40 : x
  2. Step 2: Convert to fraction form
    310,751.48/466,141.80 = 111,166.40/x
  3. Step 3: Cross multiply
    310,751.48x = 466,141.80 × 111,166.40
  4. Step 4: Simplify right side
    310,751.48x = 51,819,305,795.52
  5. Step 5: Solve for x
    x = 51,819,305,795.52/310,751.48
  6. Step 6: Final answer
    x = 166,754.82

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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.