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Finding the Fourth Proportional to 302,577.40, 453,866.10 and 125,430.40

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Solution

The fourth proportional to 302,577.40, 453,866.10 and 125,430.40 is: 188,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,577.40 : 453,866.10 = 125,430.40 : x
  2. Step 2: Convert to fraction form
    302,577.40/453,866.10 = 125,430.40/x
  3. Step 3: Cross multiply
    302,577.40x = 453,866.10 × 125,430.40
  4. Step 4: Simplify right side
    302,577.40x = 56,928,606,469.44
  5. Step 5: Solve for x
    x = 56,928,606,469.44/302,577.40
  6. Step 6: Final answer
    x = 188,145.60

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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.