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Finding the Fourth Proportional to 357,331.80, 535,668.74 and 154,800.64

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Solution

The fourth proportional to 357,331.80, 535,668.74 and 154,800.64 is: 232,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,331.80 : 535,668.74 = 154,800.64 : x
  2. Step 2: Convert to fraction form
    357,331.80/535,668.74 = 154,800.64/x
  3. Step 3: Cross multiply
    357,331.80x = 535,668.74 × 154,800.64
  4. Step 4: Simplify right side
    357,331.80x = 82,921,866,633.40
  5. Step 5: Solve for x
    x = 82,921,866,633.40/357,331.80
  6. Step 6: Final answer
    x = 232,058.46

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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.