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Finding the Fourth Proportional to 112,374.53, 168,568.27 and 42,254.45

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Solution

The fourth proportional to 112,374.53, 168,568.27 and 42,254.45 is: 63,384.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,374.53 : 168,568.27 = 42,254.45 : x
  2. Step 2: Convert to fraction form
    112,374.53/168,568.27 = 42,254.45/x
  3. Step 3: Cross multiply
    112,374.53x = 168,568.27 × 42,254.45
  4. Step 4: Simplify right side
    112,374.53x = 7,122,759,536.30
  5. Step 5: Solve for x
    x = 7,122,759,536.30/112,374.53
  6. Step 6: Final answer
    x = 63,384.11

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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.