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Finding the Fourth Proportional to 124,230.60, 186,345.90 and 98,861.40

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Solution

The fourth proportional to 124,230.60, 186,345.90 and 98,861.40 is: 148,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,230.60 : 186,345.90 = 98,861.40 : x
  2. Step 2: Convert to fraction form
    124,230.60/186,345.90 = 98,861.40/x
  3. Step 3: Cross multiply
    124,230.60x = 186,345.90 × 98,861.40
  4. Step 4: Simplify right side
    124,230.60x = 18,422,416,558.26
  5. Step 5: Solve for x
    x = 18,422,416,558.26/124,230.60
  6. Step 6: Final answer
    x = 148,292.10

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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.