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Finding the Fourth Proportional to 295,075.80, 442,723.05 and 95,402.70

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Solution

The fourth proportional to 295,075.80, 442,723.05 and 95,402.70 is: 143,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,075.80 : 442,723.05 = 95,402.70 : x
  2. Step 2: Convert to fraction form
    295,075.80/442,723.05 = 95,402.70/x
  3. Step 3: Cross multiply
    295,075.80x = 442,723.05 × 95,402.70
  4. Step 4: Simplify right side
    295,075.80x = 42,236,974,322.24
  5. Step 5: Solve for x
    x = 42,236,974,322.24/295,075.80
  6. Step 6: Final answer
    x = 143,139.40

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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.