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Finding the Fourth Proportional to 249,451.66, 373,944.21 and 91,637.74

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Solution

The fourth proportional to 249,451.66, 373,944.21 and 91,637.74 is: 137,370.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,451.66 : 373,944.21 = 91,637.74 : x
  2. Step 2: Convert to fraction form
    249,451.66/373,944.21 = 91,637.74/x
  3. Step 3: Cross multiply
    249,451.66x = 373,944.21 × 91,637.74
  4. Step 4: Simplify right side
    249,451.66x = 34,267,402,290.49
  5. Step 5: Solve for x
    x = 34,267,402,290.49/249,451.66
  6. Step 6: Final answer
    x = 137,370.91

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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.