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Finding the Fourth Proportional to 144,485.10, 216,723.60 and 65,599.20

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Solution

The fourth proportional to 144,485.10, 216,723.60 and 65,599.20 is: 98,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,485.10 : 216,723.60 = 65,599.20 : x
  2. Step 2: Convert to fraction form
    144,485.10/216,723.60 = 65,599.20/x
  3. Step 3: Cross multiply
    144,485.10x = 216,723.60 × 65,599.20
  4. Step 4: Simplify right side
    144,485.10x = 14,216,894,781.12
  5. Step 5: Solve for x
    x = 14,216,894,781.12/144,485.10
  6. Step 6: Final answer
    x = 98,396.96

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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.