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Finding the Fourth Proportional to 478,838.52, 718,156.94 and 141,882.03

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Solution

The fourth proportional to 478,838.52, 718,156.94 and 141,882.03 is: 212,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,838.52 : 718,156.94 = 141,882.03 : x
  2. Step 2: Convert to fraction form
    478,838.52/718,156.94 = 141,882.03/x
  3. Step 3: Cross multiply
    478,838.52x = 718,156.94 × 141,882.03
  4. Step 4: Simplify right side
    478,838.52x = 101,893,563,796.38
  5. Step 5: Solve for x
    x = 101,893,563,796.38/478,838.52
  6. Step 6: Final answer
    x = 212,793.16

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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.