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Finding the Fourth Proportional to 302,117.80, 453,176.70 and 272,050.60

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Solution

The fourth proportional to 302,117.80, 453,176.70 and 272,050.60 is: 408,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,117.80 : 453,176.70 = 272,050.60 : x
  2. Step 2: Convert to fraction form
    302,117.80/453,176.70 = 272,050.60/x
  3. Step 3: Cross multiply
    302,117.80x = 453,176.70 × 272,050.60
  4. Step 4: Simplify right side
    302,117.80x = 123,286,993,141.02
  5. Step 5: Solve for x
    x = 123,286,993,141.02/302,117.80
  6. Step 6: Final answer
    x = 408,075.90

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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.