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Finding the Fourth Proportional to 171,925.80, 257,888.70 and 119,437.80

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Solution

The fourth proportional to 171,925.80, 257,888.70 and 119,437.80 is: 179,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,925.80 : 257,888.70 = 119,437.80 : x
  2. Step 2: Convert to fraction form
    171,925.80/257,888.70 = 119,437.80/x
  3. Step 3: Cross multiply
    171,925.80x = 257,888.70 × 119,437.80
  4. Step 4: Simplify right side
    171,925.80x = 30,801,658,972.86
  5. Step 5: Solve for x
    x = 30,801,658,972.86/171,925.80
  6. Step 6: Final answer
    x = 179,156.70

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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.