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Finding the Fourth Proportional to 107,887.68, 161,916.26 and 74,840.27

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Solution

The fourth proportional to 107,887.68, 161,916.26 and 74,840.27 is: 112,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,887.68 : 161,916.26 = 74,840.27 : x
  2. Step 2: Convert to fraction form
    107,887.68/161,916.26 = 74,840.27/x
  3. Step 3: Cross multiply
    107,887.68x = 161,916.26 × 74,840.27
  4. Step 4: Simplify right side
    107,887.68x = 12,117,855,432.01
  5. Step 5: Solve for x
    x = 12,117,855,432.01/107,887.68
  6. Step 6: Final answer
    x = 112,319.18

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1.5x scale

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.