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Finding the Fourth Proportional to 125,390.40, 188,085.60 and 46,496.40

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Solution

The fourth proportional to 125,390.40, 188,085.60 and 46,496.40 is: 69,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,390.40 : 188,085.60 = 46,496.40 : x
  2. Step 2: Convert to fraction form
    125,390.40/188,085.60 = 46,496.40/x
  3. Step 3: Cross multiply
    125,390.40x = 188,085.60 × 46,496.40
  4. Step 4: Simplify right side
    125,390.40x = 8,745,303,291.84
  5. Step 5: Solve for x
    x = 8,745,303,291.84/125,390.40
  6. Step 6: Final answer
    x = 69,744.60

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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.