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Finding the Fourth Proportional to 249,726.55, 374,511.74 and 83,475.67

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Solution

The fourth proportional to 249,726.55, 374,511.74 and 83,475.67 is: 125,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,726.55 : 374,511.74 = 83,475.67 : x
  2. Step 2: Convert to fraction form
    249,726.55/374,511.74 = 83,475.67/x
  3. Step 3: Cross multiply
    249,726.55x = 374,511.74 × 83,475.67
  4. Step 4: Simplify right side
    249,726.55x = 31,262,616,129.43
  5. Step 5: Solve for x
    x = 31,262,616,129.43/249,726.55
  6. Step 6: Final answer
    x = 125,187.40

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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.