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Finding the Fourth Proportional to 478,004.46, 717,026.47 and 141,045.10

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Solution

The fourth proportional to 478,004.46, 717,026.47 and 141,045.10 is: 211,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,004.46 : 717,026.47 = 141,045.10 : x
  2. Step 2: Convert to fraction form
    478,004.46/717,026.47 = 141,045.10/x
  3. Step 3: Cross multiply
    478,004.46x = 717,026.47 × 141,045.10
  4. Step 4: Simplify right side
    478,004.46x = 101,133,068,018.62
  5. Step 5: Solve for x
    x = 101,133,068,018.62/478,004.46
  6. Step 6: Final answer
    x = 211,573.48

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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.