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Finding the Fourth Proportional to 249,459.66, 373,956.21 and 91,645.74

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Solution

The fourth proportional to 249,459.66, 373,956.21 and 91,645.74 is: 137,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,459.66 : 373,956.21 = 91,645.74 : x
  2. Step 2: Convert to fraction form
    249,459.66/373,956.21 = 91,645.74/x
  3. Step 3: Cross multiply
    249,459.66x = 373,956.21 × 91,645.74
  4. Step 4: Simplify right side
    249,459.66x = 34,271,493,593.05
  5. Step 5: Solve for x
    x = 34,271,493,593.05/249,459.66
  6. Step 6: Final answer
    x = 137,382.91

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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.