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Finding the Fourth Proportional to 249,900.88, 345,005.80 and 165,263.44

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Solution

The fourth proportional to 249,900.88, 345,005.80 and 165,263.44 is: 228,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,900.88 : 345,005.80 = 165,263.44 : x
  2. Step 2: Convert to fraction form
    249,900.88/345,005.80 = 165,263.44/x
  3. Step 3: Cross multiply
    249,900.88x = 345,005.80 × 165,263.44
  4. Step 4: Simplify right side
    249,900.88x = 57,016,845,327.95
  5. Step 5: Solve for x
    x = 57,016,845,327.95/249,900.88
  6. Step 6: Final answer
    x = 228,157.84

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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.