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Finding the Fourth Proportional to 181,133.55, 249,965.39 and 99,465.30

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Solution

The fourth proportional to 181,133.55, 249,965.39 and 99,465.30 is: 137,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,133.55 : 249,965.39 = 99,465.30 : x
  2. Step 2: Convert to fraction form
    181,133.55/249,965.39 = 99,465.30/x
  3. Step 3: Cross multiply
    181,133.55x = 249,965.39 × 99,465.30
  4. Step 4: Simplify right side
    181,133.55x = 24,862,882,754.63
  5. Step 5: Solve for x
    x = 24,862,882,754.63/181,133.55
  6. Step 6: Final answer
    x = 137,262.71

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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.