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Finding the Fourth Proportional to 122,403.60, 183,459.60 and 51,326.10

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Solution

The fourth proportional to 122,403.60, 183,459.60 and 51,326.10 is: 76,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,403.60 : 183,459.60 = 51,326.10 : x
  2. Step 2: Convert to fraction form
    122,403.60/183,459.60 = 51,326.10/x
  3. Step 3: Cross multiply
    122,403.60x = 183,459.60 × 51,326.10
  4. Step 4: Simplify right side
    122,403.60x = 9,416,265,775.56
  5. Step 5: Solve for x
    x = 9,416,265,775.56/122,403.60
  6. Step 6: Final answer
    x = 76,928.01

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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.