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Finding the Fourth Proportional to 295,274.80, 442,955.40 and 95,561.20

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Solution

The fourth proportional to 295,274.80, 442,955.40 and 95,561.20 is: 143,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,274.80 : 442,955.40 = 95,561.20 : x
  2. Step 2: Convert to fraction form
    295,274.80/442,955.40 = 95,561.20/x
  3. Step 3: Cross multiply
    295,274.80x = 442,955.40 × 95,561.20
  4. Step 4: Simplify right side
    295,274.80x = 42,329,349,570.48
  5. Step 5: Solve for x
    x = 42,329,349,570.48/295,274.80
  6. Step 6: Final answer
    x = 143,355.78

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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.