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Finding the Fourth Proportional to 249,637.42, 374,456.13 and 83,425.42

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Solution

The fourth proportional to 249,637.42, 374,456.13 and 83,425.42 is: 125,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,637.42 : 374,456.13 = 83,425.42 : x
  2. Step 2: Convert to fraction form
    249,637.42/374,456.13 = 83,425.42/x
  3. Step 3: Cross multiply
    249,637.42x = 374,456.13 × 83,425.42
  4. Step 4: Simplify right side
    249,637.42x = 31,239,159,916.82
  5. Step 5: Solve for x
    x = 31,239,159,916.82/249,637.42
  6. Step 6: Final answer
    x = 125,138.13

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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.