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Finding the Fourth Proportional to 114,390.95, 171,578.91 and 39,512.17

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Solution

The fourth proportional to 114,390.95, 171,578.91 and 39,512.17 is: 59,265.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,390.95 : 171,578.91 = 39,512.17 : x
  2. Step 2: Convert to fraction form
    114,390.95/171,578.91 = 39,512.17/x
  3. Step 3: Cross multiply
    114,390.95x = 171,578.91 × 39,512.17
  4. Step 4: Simplify right side
    114,390.95x = 6,779,455,200.72
  5. Step 5: Solve for x
    x = 6,779,455,200.72/114,390.95
  6. Step 6: Final answer
    x = 59,265.66

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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.