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Finding the Fourth Proportional to 488,258.40, 732,387.48 and 133,281.84

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Solution

The fourth proportional to 488,258.40, 732,387.48 and 133,281.84 is: 199,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,258.40 : 732,387.48 = 133,281.84 : x
  2. Step 2: Convert to fraction form
    488,258.40/732,387.48 = 133,281.84/x
  3. Step 3: Cross multiply
    488,258.40x = 732,387.48 × 133,281.84
  4. Step 4: Simplify right side
    488,258.40x = 97,613,950,927.36
  5. Step 5: Solve for x
    x = 97,613,950,927.36/488,258.40
  6. Step 6: Final answer
    x = 199,922.73

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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.