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Finding the Fourth Proportional to 478,840.52, 718,159.94 and 141,884.04

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Solution

The fourth proportional to 478,840.52, 718,159.94 and 141,884.04 is: 212,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,840.52 : 718,159.94 = 141,884.04 : x
  2. Step 2: Convert to fraction form
    478,840.52/718,159.94 = 141,884.04/x
  3. Step 3: Cross multiply
    478,840.52x = 718,159.94 × 141,884.04
  4. Step 4: Simplify right side
    478,840.52x = 101,895,433,653.36
  5. Step 5: Solve for x
    x = 101,895,433,653.36/478,840.52
  6. Step 6: Final answer
    x = 212,796.18

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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.