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Finding the Fourth Proportional to 488,618.49, 732,917.29 and 133,632.51

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Solution

The fourth proportional to 488,618.49, 732,917.29 and 133,632.51 is: 200,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,618.49 : 732,917.29 = 133,632.51 : x
  2. Step 2: Convert to fraction form
    488,618.49/732,917.29 = 133,632.51/x
  3. Step 3: Cross multiply
    488,618.49x = 732,917.29 × 133,632.51
  4. Step 4: Simplify right side
    488,618.49x = 97,941,577,085.10
  5. Step 5: Solve for x
    x = 97,941,577,085.10/488,618.49
  6. Step 6: Final answer
    x = 200,445.91

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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.