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Finding the Fourth Proportional to 180,430.35, 249,020.24 and 103,934.57

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Solution

The fourth proportional to 180,430.35, 249,020.24 and 103,934.57 is: 143,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,430.35 : 249,020.24 = 103,934.57 : x
  2. Step 2: Convert to fraction form
    180,430.35/249,020.24 = 103,934.57/x
  3. Step 3: Cross multiply
    180,430.35x = 249,020.24 × 103,934.57
  4. Step 4: Simplify right side
    180,430.35x = 25,881,809,800.92
  5. Step 5: Solve for x
    x = 25,881,809,800.92/180,430.35
  6. Step 6: Final answer
    x = 143,444.88

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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.