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Finding the Fourth Proportional to 249,399.94, 374,248.95 and 91,644.34

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Solution

The fourth proportional to 249,399.94, 374,248.95 and 91,644.34 is: 137,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,399.94 : 374,248.95 = 91,644.34 : x
  2. Step 2: Convert to fraction form
    249,399.94/374,248.95 = 91,644.34/x
  3. Step 3: Cross multiply
    249,399.94x = 374,248.95 × 91,644.34
  4. Step 4: Simplify right side
    249,399.94x = 34,297,798,018.44
  5. Step 5: Solve for x
    x = 34,297,798,018.44/249,399.94
  6. Step 6: Final answer
    x = 137,521.28

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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.