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Finding the Fourth Proportional to 124,340.34, 186,565.64 and 65,161.94

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Solution

The fourth proportional to 124,340.34, 186,565.64 and 65,161.94 is: 97,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,340.34 : 186,565.64 = 65,161.94 : x
  2. Step 2: Convert to fraction form
    124,340.34/186,565.64 = 65,161.94/x
  3. Step 3: Cross multiply
    124,340.34x = 186,565.64 × 65,161.94
  4. Step 4: Simplify right side
    124,340.34x = 12,156,979,039.74
  5. Step 5: Solve for x
    x = 12,156,979,039.74/124,340.34
  6. Step 6: Final answer
    x = 97,771.80

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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.