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Finding the Fourth Proportional to 180,884, 249,619.92 and 101,396

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Solution

The fourth proportional to 180,884, 249,619.92 and 101,396 is: 139,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,884 : 249,619.92 = 101,396 : x
  2. Step 2: Convert to fraction form
    180,884/249,619.92 = 101,396/x
  3. Step 3: Cross multiply
    180,884x = 249,619.92 × 101,396
  4. Step 4: Simplify right side
    180,884x = 25,310,461,408.32
  5. Step 5: Solve for x
    x = 25,310,461,408.32/180,884
  6. Step 6: Final answer
    x = 139,926.48

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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.