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Finding the Fourth Proportional to 171,656.13, 257,420.88 and 59,307.51

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Solution

The fourth proportional to 171,656.13, 257,420.88 and 59,307.51 is: 88,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,656.13 : 257,420.88 = 59,307.51 : x
  2. Step 2: Convert to fraction form
    171,656.13/257,420.88 = 59,307.51/x
  3. Step 3: Cross multiply
    171,656.13x = 257,420.88 × 59,307.51
  4. Step 4: Simplify right side
    171,656.13x = 15,266,991,414.81
  5. Step 5: Solve for x
    x = 15,266,991,414.81/171,656.13
  6. Step 6: Final answer
    x = 88,939.39

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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.