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Finding the Fourth Proportional to 345,199.83, 517,878.18 and 105,335.18

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Solution

The fourth proportional to 345,199.83, 517,878.18 and 105,335.18 is: 158,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,199.83 : 517,878.18 = 105,335.18 : x
  2. Step 2: Convert to fraction form
    345,199.83/517,878.18 = 105,335.18/x
  3. Step 3: Cross multiply
    345,199.83x = 517,878.18 × 105,335.18
  4. Step 4: Simplify right side
    345,199.83x = 54,550,791,308.37
  5. Step 5: Solve for x
    x = 54,550,791,308.37/345,199.83
  6. Step 6: Final answer
    x = 158,026.70

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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.