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Finding the Fourth Proportional to 249,996.60, 374,958.45 and 72,485.10

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Solution

The fourth proportional to 249,996.60, 374,958.45 and 72,485.10 is: 108,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,996.60 : 374,958.45 = 72,485.10 : x
  2. Step 2: Convert to fraction form
    249,996.60/374,958.45 = 72,485.10/x
  3. Step 3: Cross multiply
    249,996.60x = 374,958.45 × 72,485.10
  4. Step 4: Simplify right side
    249,996.60x = 27,178,900,744.10
  5. Step 5: Solve for x
    x = 27,178,900,744.10/249,996.60
  6. Step 6: Final answer
    x = 108,717.08

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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.