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Finding the Fourth Proportional to 144,886.45, 217,343.52 and 45,019.83

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Solution

The fourth proportional to 144,886.45, 217,343.52 and 45,019.83 is: 67,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,886.45 : 217,343.52 = 45,019.83 : x
  2. Step 2: Convert to fraction form
    144,886.45/217,343.52 = 45,019.83/x
  3. Step 3: Cross multiply
    144,886.45x = 217,343.52 × 45,019.83
  4. Step 4: Simplify right side
    144,886.45x = 9,784,768,322.00
  5. Step 5: Solve for x
    x = 9,784,768,322.00/144,886.45
  6. Step 6: Final answer
    x = 67,534.05

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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.