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Finding the Fourth Proportional to 478,095.60, 716,976.27 and 141,046.80

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Solution

The fourth proportional to 478,095.60, 716,976.27 and 141,046.80 is: 211,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,095.60 : 716,976.27 = 141,046.80 : x
  2. Step 2: Convert to fraction form
    478,095.60/716,976.27 = 141,046.80/x
  3. Step 3: Cross multiply
    478,095.60x = 716,976.27 × 141,046.80
  4. Step 4: Simplify right side
    478,095.60x = 101,127,208,559.44
  5. Step 5: Solve for x
    x = 101,127,208,559.44/478,095.60
  6. Step 6: Final answer
    x = 211,520.89

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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.