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Finding the Fourth Proportional to 370,858.80, 555,899.40 and 146,132.40

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Solution

The fourth proportional to 370,858.80, 555,899.40 and 146,132.40 is: 219,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,858.80 : 555,899.40 = 146,132.40 : x
  2. Step 2: Convert to fraction form
    370,858.80/555,899.40 = 146,132.40/x
  3. Step 3: Cross multiply
    370,858.80x = 555,899.40 × 146,132.40
  4. Step 4: Simplify right side
    370,858.80x = 81,234,913,480.56
  5. Step 5: Solve for x
    x = 81,234,913,480.56/370,858.80
  6. Step 6: Final answer
    x = 219,045.40

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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.