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Finding the Fourth Proportional to 180,620.42, 249,376.72 and 112,664.66

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Solution

The fourth proportional to 180,620.42, 249,376.72 and 112,664.66 is: 155,552.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,620.42 : 249,376.72 = 112,664.66 : x
  2. Step 2: Convert to fraction form
    180,620.42/249,376.72 = 112,664.66/x
  3. Step 3: Cross multiply
    180,620.42x = 249,376.72 × 112,664.66
  4. Step 4: Simplify right side
    180,620.42x = 28,095,943,370.72
  5. Step 5: Solve for x
    x = 28,095,943,370.72/180,620.42
  6. Step 6: Final answer
    x = 155,552.42

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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.