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Finding the Fourth Proportional to 194,689.63, 268,648.80 and 112,999.02

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Solution

The fourth proportional to 194,689.63, 268,648.80 and 112,999.02 is: 155,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,689.63 : 268,648.80 = 112,999.02 : x
  2. Step 2: Convert to fraction form
    194,689.63/268,648.80 = 112,999.02/x
  3. Step 3: Cross multiply
    194,689.63x = 268,648.80 × 112,999.02
  4. Step 4: Simplify right side
    194,689.63x = 30,357,052,595.34
  5. Step 5: Solve for x
    x = 30,357,052,595.34/194,689.63
  6. Step 6: Final answer
    x = 155,925.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.