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Finding the Fourth Proportional to 302,457.80, 453,686.70 and 125,092.10

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Solution

The fourth proportional to 302,457.80, 453,686.70 and 125,092.10 is: 187,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,457.80 : 453,686.70 = 125,092.10 : x
  2. Step 2: Convert to fraction form
    302,457.80/453,686.70 = 125,092.10/x
  3. Step 3: Cross multiply
    302,457.80x = 453,686.70 × 125,092.10
  4. Step 4: Simplify right side
    302,457.80x = 56,752,622,045.07
  5. Step 5: Solve for x
    x = 56,752,622,045.07/302,457.80
  6. Step 6: Final answer
    x = 187,638.15

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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.