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Finding the Fourth Proportional to 117,528.40, 176,227.80 and 47,328.40

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Solution

The fourth proportional to 117,528.40, 176,227.80 and 47,328.40 is: 70,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,528.40 : 176,227.80 = 47,328.40 : x
  2. Step 2: Convert to fraction form
    117,528.40/176,227.80 = 47,328.40/x
  3. Step 3: Cross multiply
    117,528.40x = 176,227.80 × 47,328.40
  4. Step 4: Simplify right side
    117,528.40x = 8,340,579,809.52
  5. Step 5: Solve for x
    x = 8,340,579,809.52/117,528.40
  6. Step 6: Final answer
    x = 70,966.51

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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.