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Finding the Fourth Proportional to 96,672.71, 133,378.43 and 56,357.93

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Solution

The fourth proportional to 96,672.71, 133,378.43 and 56,357.93 is: 77,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,672.71 : 133,378.43 = 56,357.93 : x
  2. Step 2: Convert to fraction form
    96,672.71/133,378.43 = 56,357.93/x
  3. Step 3: Cross multiply
    96,672.71x = 133,378.43 × 56,357.93
  4. Step 4: Simplify right side
    96,672.71x = 7,516,932,273.11
  5. Step 5: Solve for x
    x = 7,516,932,273.11/96,672.71
  6. Step 6: Final answer
    x = 77,756.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.