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Finding the Fourth Proportional to 423,656.98, 635,484.94 and 108,113.89

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Solution

The fourth proportional to 423,656.98, 635,484.94 and 108,113.89 is: 162,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,656.98 : 635,484.94 = 108,113.89 : x
  2. Step 2: Convert to fraction form
    423,656.98/635,484.94 = 108,113.89/x
  3. Step 3: Cross multiply
    423,656.98x = 635,484.94 × 108,113.89
  4. Step 4: Simplify right side
    423,656.98x = 68,704,748,840.49
  5. Step 5: Solve for x
    x = 68,704,748,840.49/423,656.98
  6. Step 6: Final answer
    x = 162,170.70

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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.