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Finding the Fourth Proportional to 171,277.95, 257,010.95 and 87,045.38

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Solution

The fourth proportional to 171,277.95, 257,010.95 and 87,045.38 is: 130,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,277.95 : 257,010.95 = 87,045.38 : x
  2. Step 2: Convert to fraction form
    171,277.95/257,010.95 = 87,045.38/x
  3. Step 3: Cross multiply
    171,277.95x = 257,010.95 × 87,045.38
  4. Step 4: Simplify right side
    171,277.95x = 22,371,614,735.60
  5. Step 5: Solve for x
    x = 22,371,614,735.60/171,277.95
  6. Step 6: Final answer
    x = 130,615.85

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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.