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Finding the Fourth Proportional to 289,962.88, 435,054.96 and 112,594.32

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Solution

The fourth proportional to 289,962.88, 435,054.96 and 112,594.32 is: 168,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,962.88 : 435,054.96 = 112,594.32 : x
  2. Step 2: Convert to fraction form
    289,962.88/435,054.96 = 112,594.32/x
  3. Step 3: Cross multiply
    289,962.88x = 435,054.96 × 112,594.32
  4. Step 4: Simplify right side
    289,962.88x = 48,984,717,383.83
  5. Step 5: Solve for x
    x = 48,984,717,383.83/289,962.88
  6. Step 6: Final answer
    x = 168,934.44

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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.