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Finding the Fourth Proportional to 144,527.60, 216,791.40 and 39,346.40

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Solution

The fourth proportional to 144,527.60, 216,791.40 and 39,346.40 is: 59,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,527.60 : 216,791.40 = 39,346.40 : x
  2. Step 2: Convert to fraction form
    144,527.60/216,791.40 = 39,346.40/x
  3. Step 3: Cross multiply
    144,527.60x = 216,791.40 × 39,346.40
  4. Step 4: Simplify right side
    144,527.60x = 8,529,961,140.96
  5. Step 5: Solve for x
    x = 8,529,961,140.96/144,527.60
  6. Step 6: Final answer
    x = 59,019.60

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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.