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Finding the Fourth Proportional to 249,642.69, 374,449.46 and 72,145.77

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Solution

The fourth proportional to 249,642.69, 374,449.46 and 72,145.77 is: 108,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,642.69 : 374,449.46 = 72,145.77 : x
  2. Step 2: Convert to fraction form
    249,642.69/374,449.46 = 72,145.77/x
  3. Step 3: Cross multiply
    249,642.69x = 374,449.46 × 72,145.77
  4. Step 4: Simplify right side
    249,642.69x = 27,014,944,257.06
  5. Step 5: Solve for x
    x = 27,014,944,257.06/249,642.69
  6. Step 6: Final answer
    x = 108,214.44

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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.