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Finding the Fourth Proportional to 208,339.60, 312,527.88 and 58,581.20

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Solution

The fourth proportional to 208,339.60, 312,527.88 and 58,581.20 is: 87,877.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,339.60 : 312,527.88 = 58,581.20 : x
  2. Step 2: Convert to fraction form
    208,339.60/312,527.88 = 58,581.20/x
  3. Step 3: Cross multiply
    208,339.60x = 312,527.88 × 58,581.20
  4. Step 4: Simplify right side
    208,339.60x = 18,308,258,243.86
  5. Step 5: Solve for x
    x = 18,308,258,243.86/208,339.60
  6. Step 6: Final answer
    x = 87,877.00

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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.