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Finding the Fourth Proportional to 171,801.80, 257,897.10 and 101,720.60

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Solution

The fourth proportional to 171,801.80, 257,897.10 and 101,720.60 is: 152,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,801.80 : 257,897.10 = 101,720.60 : x
  2. Step 2: Convert to fraction form
    171,801.80/257,897.10 = 101,720.60/x
  3. Step 3: Cross multiply
    171,801.80x = 257,897.10 × 101,720.60
  4. Step 4: Simplify right side
    171,801.80x = 26,233,447,750.26
  5. Step 5: Solve for x
    x = 26,233,447,750.26/171,801.80
  6. Step 6: Final answer
    x = 152,696.00

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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.