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Finding the Fourth Proportional to 124,809.80, 187,214.70 and 122,966.60

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Solution

The fourth proportional to 124,809.80, 187,214.70 and 122,966.60 is: 184,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.80 : 187,214.70 = 122,966.60 : x
  2. Step 2: Convert to fraction form
    124,809.80/187,214.70 = 122,966.60/x
  3. Step 3: Cross multiply
    124,809.80x = 187,214.70 × 122,966.60
  4. Step 4: Simplify right side
    124,809.80x = 23,021,155,129.02
  5. Step 5: Solve for x
    x = 23,021,155,129.02/124,809.80
  6. Step 6: Final answer
    x = 184,449.90

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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.