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Finding the Fourth Proportional to 171,437.40, 257,223.72 and 53,117.94

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Solution

The fourth proportional to 171,437.40, 257,223.72 and 53,117.94 is: 79,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,437.40 : 257,223.72 = 53,117.94 : x
  2. Step 2: Convert to fraction form
    171,437.40/257,223.72 = 53,117.94/x
  3. Step 3: Cross multiply
    171,437.40x = 257,223.72 × 53,117.94
  4. Step 4: Simplify right side
    171,437.40x = 13,663,194,125.54
  5. Step 5: Solve for x
    x = 13,663,194,125.54/171,437.40
  6. Step 6: Final answer
    x = 79,697.86

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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.