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Finding the Fourth Proportional to 249,543.81, 374,204.43 and 72,008.64

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Solution

The fourth proportional to 249,543.81, 374,204.43 and 72,008.64 is: 107,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,543.81 : 374,204.43 = 72,008.64 : x
  2. Step 2: Convert to fraction form
    249,543.81/374,204.43 = 72,008.64/x
  3. Step 3: Cross multiply
    249,543.81x = 374,204.43 × 72,008.64
  4. Step 4: Simplify right side
    249,543.81x = 26,945,952,086.28
  5. Step 5: Solve for x
    x = 26,945,952,086.28/249,543.81
  6. Step 6: Final answer
    x = 107,980.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.