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Finding the Fourth Proportional to 480,788.92, 721,224.42 and 125,802.64

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Solution

The fourth proportional to 480,788.92, 721,224.42 and 125,802.64 is: 188,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,788.92 : 721,224.42 = 125,802.64 : x
  2. Step 2: Convert to fraction form
    480,788.92/721,224.42 = 125,802.64/x
  3. Step 3: Cross multiply
    480,788.92x = 721,224.42 × 125,802.64
  4. Step 4: Simplify right side
    480,788.92x = 90,731,936,068.47
  5. Step 5: Solve for x
    x = 90,731,936,068.47/480,788.92
  6. Step 6: Final answer
    x = 188,714.70

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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.