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Finding the Fourth Proportional to 249,689.56, 344,601.78 and 140,814.60

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Solution

The fourth proportional to 249,689.56, 344,601.78 and 140,814.60 is: 194,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,689.56 : 344,601.78 = 140,814.60 : x
  2. Step 2: Convert to fraction form
    249,689.56/344,601.78 = 140,814.60/x
  3. Step 3: Cross multiply
    249,689.56x = 344,601.78 × 140,814.60
  4. Step 4: Simplify right side
    249,689.56x = 48,524,961,809.99
  5. Step 5: Solve for x
    x = 48,524,961,809.99/249,689.56
  6. Step 6: Final answer
    x = 194,341.17

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1.5x scale

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.