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Finding the Fourth Proportional to 370,357.32, 555,421.08 and 133,669.20

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Solution

The fourth proportional to 370,357.32, 555,421.08 and 133,669.20 is: 200,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,357.32 : 555,421.08 = 133,669.20 : x
  2. Step 2: Convert to fraction form
    370,357.32/555,421.08 = 133,669.20/x
  3. Step 3: Cross multiply
    370,357.32x = 555,421.08 × 133,669.20
  4. Step 4: Simplify right side
    370,357.32x = 74,242,691,426.74
  5. Step 5: Solve for x
    x = 74,242,691,426.74/370,357.32
  6. Step 6: Final answer
    x = 200,462.33

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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.