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Finding the Fourth Proportional to 113,501.87, 156,631.11 and 62,513.63

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Solution

The fourth proportional to 113,501.87, 156,631.11 and 62,513.63 is: 86,268.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,501.87 : 156,631.11 = 62,513.63 : x
  2. Step 2: Convert to fraction form
    113,501.87/156,631.11 = 62,513.63/x
  3. Step 3: Cross multiply
    113,501.87x = 156,631.11 × 62,513.63
  4. Step 4: Simplify right side
    113,501.87x = 9,791,579,257.03
  5. Step 5: Solve for x
    x = 9,791,579,257.03/113,501.87
  6. Step 6: Final answer
    x = 86,268.00

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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.