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Finding the Fourth Proportional to 302,421.60, 453,632.40 and 125,055.90

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Solution

The fourth proportional to 302,421.60, 453,632.40 and 125,055.90 is: 187,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,421.60 : 453,632.40 = 125,055.90 : x
  2. Step 2: Convert to fraction form
    302,421.60/453,632.40 = 125,055.90/x
  3. Step 3: Cross multiply
    302,421.60x = 453,632.40 × 125,055.90
  4. Step 4: Simplify right side
    302,421.60x = 56,729,408,051.16
  5. Step 5: Solve for x
    x = 56,729,408,051.16/302,421.60
  6. Step 6: Final answer
    x = 187,583.85

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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.