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Finding the Fourth Proportional to 500,519.64, 750,852.72 and 145,487.52

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Solution

The fourth proportional to 500,519.64, 750,852.72 and 145,487.52 is: 218,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,519.64 : 750,852.72 = 145,487.52 : x
  2. Step 2: Convert to fraction form
    500,519.64/750,852.72 = 145,487.52/x
  3. Step 3: Cross multiply
    500,519.64x = 750,852.72 × 145,487.52
  4. Step 4: Simplify right side
    500,519.64x = 109,239,700,118.05
  5. Step 5: Solve for x
    x = 109,239,700,118.05/500,519.64
  6. Step 6: Final answer
    x = 218,252.57

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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.