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Finding the Fourth Proportional to 125,328.40, 187,999.80 and 36,595.60

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Solution

The fourth proportional to 125,328.40, 187,999.80 and 36,595.60 is: 54,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,328.40 : 187,999.80 = 36,595.60 : x
  2. Step 2: Convert to fraction form
    125,328.40/187,999.80 = 36,595.60/x
  3. Step 3: Cross multiply
    125,328.40x = 187,999.80 × 36,595.60
  4. Step 4: Simplify right side
    125,328.40x = 6,879,965,480.88
  5. Step 5: Solve for x
    x = 6,879,965,480.88/125,328.40
  6. Step 6: Final answer
    x = 54,895.50

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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.