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Finding the Fourth Proportional to 249,443.36, 374,152.88 and 91,659.68

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Solution

The fourth proportional to 249,443.36, 374,152.88 and 91,659.68 is: 137,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,443.36 : 374,152.88 = 91,659.68 : x
  2. Step 2: Convert to fraction form
    249,443.36/374,152.88 = 91,659.68/x
  3. Step 3: Cross multiply
    249,443.36x = 374,152.88 × 91,659.68
  4. Step 4: Simplify right side
    249,443.36x = 34,294,733,251.88
  5. Step 5: Solve for x
    x = 34,294,733,251.88/249,443.36
  6. Step 6: Final answer
    x = 137,485.05

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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.