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Finding the Fourth Proportional to 249,449.88, 374,211.86 and 91,666.02

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Solution

The fourth proportional to 249,449.88, 374,211.86 and 91,666.02 is: 137,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,449.88 : 374,211.86 = 91,666.02 : x
  2. Step 2: Convert to fraction form
    249,449.88/374,211.86 = 91,666.02/x
  3. Step 3: Cross multiply
    249,449.88x = 374,211.86 × 91,666.02
  4. Step 4: Simplify right side
    249,449.88x = 34,302,511,384.67
  5. Step 5: Solve for x
    x = 34,302,511,384.67/249,449.88
  6. Step 6: Final answer
    x = 137,512.64

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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.