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Finding the Fourth Proportional to 58,302.40, 87,475.20 and 56,142.40

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Solution

The fourth proportional to 58,302.40, 87,475.20 and 56,142.40 is: 84,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,302.40 : 87,475.20 = 56,142.40 : x
  2. Step 2: Convert to fraction form
    58,302.40/87,475.20 = 56,142.40/x
  3. Step 3: Cross multiply
    58,302.40x = 87,475.20 × 56,142.40
  4. Step 4: Simplify right side
    58,302.40x = 4,911,067,668.48
  5. Step 5: Solve for x
    x = 4,911,067,668.48/58,302.40
  6. Step 6: Final answer
    x = 84,234.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.