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Finding the Fourth Proportional to 249,873.26, 374,809.88 and 72,380.32

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Solution

The fourth proportional to 249,873.26, 374,809.88 and 72,380.32 is: 108,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,873.26 : 374,809.88 = 72,380.32 : x
  2. Step 2: Convert to fraction form
    249,873.26/374,809.88 = 72,380.32/x
  3. Step 3: Cross multiply
    249,873.26x = 374,809.88 × 72,380.32
  4. Step 4: Simplify right side
    249,873.26x = 27,128,859,053.56
  5. Step 5: Solve for x
    x = 27,128,859,053.56/249,873.26
  6. Step 6: Final answer
    x = 108,570.48

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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.