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Finding the Fourth Proportional to 302,043.90, 453,130.65 and 91,703.10

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Solution

The fourth proportional to 302,043.90, 453,130.65 and 91,703.10 is: 137,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,043.90 : 453,130.65 = 91,703.10 : x
  2. Step 2: Convert to fraction form
    302,043.90/453,130.65 = 91,703.10/x
  3. Step 3: Cross multiply
    302,043.90x = 453,130.65 × 91,703.10
  4. Step 4: Simplify right side
    302,043.90x = 41,553,485,310.02
  5. Step 5: Solve for x
    x = 41,553,485,310.02/302,043.90
  6. Step 6: Final answer
    x = 137,574.32

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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.