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Finding the Fourth Proportional to 169,408.31, 233,790.80 and 101,412.12

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Solution

The fourth proportional to 169,408.31, 233,790.80 and 101,412.12 is: 139,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,408.31 : 233,790.80 = 101,412.12 : x
  2. Step 2: Convert to fraction form
    169,408.31/233,790.80 = 101,412.12/x
  3. Step 3: Cross multiply
    169,408.31x = 233,790.80 × 101,412.12
  4. Step 4: Simplify right side
    169,408.31x = 23,709,220,664.50
  5. Step 5: Solve for x
    x = 23,709,220,664.50/169,408.31
  6. Step 6: Final answer
    x = 139,953.11

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1.5x scale

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.