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Finding the Fourth Proportional to 488,631.52, 732,950.48 and 133,637.60

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Solution

The fourth proportional to 488,631.52, 732,950.48 and 133,637.60 is: 200,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,631.52 : 732,950.48 = 133,637.60 : x
  2. Step 2: Convert to fraction form
    488,631.52/732,950.48 = 133,637.60/x
  3. Step 3: Cross multiply
    488,631.52x = 732,950.48 × 133,637.60
  4. Step 4: Simplify right side
    488,631.52x = 97,949,743,066.05
  5. Step 5: Solve for x
    x = 97,949,743,066.05/488,631.52
  6. Step 6: Final answer
    x = 200,457.28

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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.