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Finding the Fourth Proportional to 125,101.80, 187,587.90 and 46,175.40

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Solution

The fourth proportional to 125,101.80, 187,587.90 and 46,175.40 is: 69,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.80 : 187,587.90 = 46,175.40 : x
  2. Step 2: Convert to fraction form
    125,101.80/187,587.90 = 46,175.40/x
  3. Step 3: Cross multiply
    125,101.80x = 187,587.90 × 46,175.40
  4. Step 4: Simplify right side
    125,101.80x = 8,661,946,317.66
  5. Step 5: Solve for x
    x = 8,661,946,317.66/125,101.80
  6. Step 6: Final answer
    x = 69,239.18

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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.