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Finding the Fourth Proportional to 125,621.52, 188,459.88 and 41,407.60

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Solution

The fourth proportional to 125,621.52, 188,459.88 and 41,407.60 is: 62,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,621.52 : 188,459.88 = 41,407.60 : x
  2. Step 2: Convert to fraction form
    125,621.52/188,459.88 = 41,407.60/x
  3. Step 3: Cross multiply
    125,621.52x = 188,459.88 × 41,407.60
  4. Step 4: Simplify right side
    125,621.52x = 7,803,671,327.09
  5. Step 5: Solve for x
    x = 7,803,671,327.09/125,621.52
  6. Step 6: Final answer
    x = 62,120.50

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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.