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Finding the Fourth Proportional to 113,506.97, 170,259.57 and 42,447.51

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Solution

The fourth proportional to 113,506.97, 170,259.57 and 42,447.51 is: 63,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,506.97 : 170,259.57 = 42,447.51 : x
  2. Step 2: Convert to fraction form
    113,506.97/170,259.57 = 42,447.51/x
  3. Step 3: Cross multiply
    113,506.97x = 170,259.57 × 42,447.51
  4. Step 4: Simplify right side
    113,506.97x = 7,227,094,800.17
  5. Step 5: Solve for x
    x = 7,227,094,800.17/113,506.97
  6. Step 6: Final answer
    x = 63,670.94

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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.