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Finding the Fourth Proportional to 119,688.88, 179,585.28 and 64,220.08

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Solution

The fourth proportional to 119,688.88, 179,585.28 and 64,220.08 is: 96,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,688.88 : 179,585.28 = 64,220.08 : x
  2. Step 2: Convert to fraction form
    119,688.88/179,585.28 = 64,220.08/x
  3. Step 3: Cross multiply
    119,688.88x = 179,585.28 × 64,220.08
  4. Step 4: Simplify right side
    119,688.88x = 11,532,981,048.42
  5. Step 5: Solve for x
    x = 11,532,981,048.42/119,688.88
  6. Step 6: Final answer
    x = 96,358.00

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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.