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Finding the Fourth Proportional to 180,521.91, 249,100.65 and 99,936.63

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Solution

The fourth proportional to 180,521.91, 249,100.65 and 99,936.63 is: 137,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,521.91 : 249,100.65 = 99,936.63 : x
  2. Step 2: Convert to fraction form
    180,521.91/249,100.65 = 99,936.63/x
  3. Step 3: Cross multiply
    180,521.91x = 249,100.65 × 99,936.63
  4. Step 4: Simplify right side
    180,521.91x = 24,894,279,491.81
  5. Step 5: Solve for x
    x = 24,894,279,491.81/180,521.91
  6. Step 6: Final answer
    x = 137,901.71

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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.