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Finding the Fourth Proportional to 424,595.89, 636,893.88 and 109,053.10

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Solution

The fourth proportional to 424,595.89, 636,893.88 and 109,053.10 is: 163,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,595.89 : 636,893.88 = 109,053.10 : x
  2. Step 2: Convert to fraction form
    424,595.89/636,893.88 = 109,053.10/x
  3. Step 3: Cross multiply
    424,595.89x = 636,893.88 × 109,053.10
  4. Step 4: Simplify right side
    424,595.89x = 69,455,251,985.03
  5. Step 5: Solve for x
    x = 69,455,251,985.03/424,595.89
  6. Step 6: Final answer
    x = 163,579.66

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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.