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Finding the Fourth Proportional to 233,137.13, 321,741.05 and 137,641.77

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Solution

The fourth proportional to 233,137.13, 321,741.05 and 137,641.77 is: 189,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,137.13 : 321,741.05 = 137,641.77 : x
  2. Step 2: Convert to fraction form
    233,137.13/321,741.05 = 137,641.77/x
  3. Step 3: Cross multiply
    233,137.13x = 321,741.05 × 137,641.77
  4. Step 4: Simplify right side
    233,137.13x = 44,285,006,915.45
  5. Step 5: Solve for x
    x = 44,285,006,915.45/233,137.13
  6. Step 6: Final answer
    x = 189,952.62

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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.