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Finding the Fourth Proportional to 297,780.64, 446,700.12 and 98,019.52

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Solution

The fourth proportional to 297,780.64, 446,700.12 and 98,019.52 is: 147,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,780.64 : 446,700.12 = 98,019.52 : x
  2. Step 2: Convert to fraction form
    297,780.64/446,700.12 = 98,019.52/x
  3. Step 3: Cross multiply
    297,780.64x = 446,700.12 × 98,019.52
  4. Step 4: Simplify right side
    297,780.64x = 43,785,331,346.34
  5. Step 5: Solve for x
    x = 43,785,331,346.34/297,780.64
  6. Step 6: Final answer
    x = 147,038.88

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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.