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Finding the Fourth Proportional to 478,001.94, 716,998.05 and 123,014.58

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Solution

The fourth proportional to 478,001.94, 716,998.05 and 123,014.58 is: 184,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,001.94 : 716,998.05 = 123,014.58 : x
  2. Step 2: Convert to fraction form
    478,001.94/716,998.05 = 123,014.58/x
  3. Step 3: Cross multiply
    478,001.94x = 716,998.05 × 123,014.58
  4. Step 4: Simplify right side
    478,001.94x = 88,201,213,981.57
  5. Step 5: Solve for x
    x = 88,201,213,981.57/478,001.94
  6. Step 6: Final answer
    x = 184,520.62

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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.