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Finding the Fourth Proportional to 171,645.30, 257,516.55 and 53,328.60

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Solution

The fourth proportional to 171,645.30, 257,516.55 and 53,328.60 is: 80,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,645.30 : 257,516.55 = 53,328.60 : x
  2. Step 2: Convert to fraction form
    171,645.30/257,516.55 = 53,328.60/x
  3. Step 3: Cross multiply
    171,645.30x = 257,516.55 × 53,328.60
  4. Step 4: Simplify right side
    171,645.30x = 13,732,997,088.33
  5. Step 5: Solve for x
    x = 13,732,997,088.33/171,645.30
  6. Step 6: Final answer
    x = 80,008.00

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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.