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Finding the Fourth Proportional to 266,890, 368,312.88 and 146,041.87

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Solution

The fourth proportional to 266,890, 368,312.88 and 146,041.87 is: 201,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,890 : 368,312.88 = 146,041.87 : x
  2. Step 2: Convert to fraction form
    266,890/368,312.88 = 146,041.87/x
  3. Step 3: Cross multiply
    266,890x = 368,312.88 × 146,041.87
  4. Step 4: Simplify right side
    266,890x = 53,789,101,740.29
  5. Step 5: Solve for x
    x = 53,789,101,740.29/266,890
  6. Step 6: Final answer
    x = 201,540.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.