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Finding the Fourth Proportional to 249,638.52, 374,457.80 and 83,426.52

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Solution

The fourth proportional to 249,638.52, 374,457.80 and 83,426.52 is: 125,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,638.52 : 374,457.80 = 83,426.52 : x
  2. Step 2: Convert to fraction form
    249,638.52/374,457.80 = 83,426.52/x
  3. Step 3: Cross multiply
    249,638.52x = 374,457.80 × 83,426.52
  4. Step 4: Simplify right side
    249,638.52x = 31,239,711,140.86
  5. Step 5: Solve for x
    x = 31,239,711,140.86/249,638.52
  6. Step 6: Final answer
    x = 125,139.79

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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.