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Finding the Fourth Proportional to 249,767.68, 344,682.12 and 136,588

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Solution

The fourth proportional to 249,767.68, 344,682.12 and 136,588 is: 188,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,767.68 : 344,682.12 = 136,588 : x
  2. Step 2: Convert to fraction form
    249,767.68/344,682.12 = 136,588/x
  3. Step 3: Cross multiply
    249,767.68x = 344,682.12 × 136,588
  4. Step 4: Simplify right side
    249,767.68x = 47,079,441,406.56
  5. Step 5: Solve for x
    x = 47,079,441,406.56/249,767.68
  6. Step 6: Final answer
    x = 188,492.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.