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Finding the Fourth Proportional to 180,611.91, 249,364.98 and 112,656.15

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Solution

The fourth proportional to 180,611.91, 249,364.98 and 112,656.15 is: 155,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,611.91 : 249,364.98 = 112,656.15 : x
  2. Step 2: Convert to fraction form
    180,611.91/249,364.98 = 112,656.15/x
  3. Step 3: Cross multiply
    180,611.91x = 249,364.98 × 112,656.15
  4. Step 4: Simplify right side
    180,611.91x = 28,092,498,591.63
  5. Step 5: Solve for x
    x = 28,092,498,591.63/180,611.91
  6. Step 6: Final answer
    x = 155,540.68

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1.5x scale

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.