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Finding the Fourth Proportional to 318,714.04, 478,066.74 and 108,498.52

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Solution

The fourth proportional to 318,714.04, 478,066.74 and 108,498.52 is: 162,746.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,714.04 : 478,066.74 = 108,498.52 : x
  2. Step 2: Convert to fraction form
    318,714.04/478,066.74 = 108,498.52/x
  3. Step 3: Cross multiply
    318,714.04x = 478,066.74 × 108,498.52
  4. Step 4: Simplify right side
    318,714.04x = 51,869,533,751.22
  5. Step 5: Solve for x
    x = 51,869,533,751.22/318,714.04
  6. Step 6: Final answer
    x = 162,746.31

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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.