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Finding the Fourth Proportional to 180,479.88, 249,061.37 and 98,815.61

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Solution

The fourth proportional to 180,479.88, 249,061.37 and 98,815.61 is: 136,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,479.88 : 249,061.37 = 98,815.61 : x
  2. Step 2: Convert to fraction form
    180,479.88/249,061.37 = 98,815.61/x
  3. Step 3: Cross multiply
    180,479.88x = 249,061.37 × 98,815.61
  4. Step 4: Simplify right side
    180,479.88x = 24,611,151,332.56
  5. Step 5: Solve for x
    x = 24,611,151,332.56/180,479.88
  6. Step 6: Final answer
    x = 136,365.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.