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Finding the Fourth Proportional to 75,082.70, 112,332.45 and 48,838.70

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Solution

The fourth proportional to 75,082.70, 112,332.45 and 48,838.70 is: 73,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,082.70 : 112,332.45 = 48,838.70 : x
  2. Step 2: Convert to fraction form
    75,082.70/112,332.45 = 48,838.70/x
  3. Step 3: Cross multiply
    75,082.70x = 112,332.45 × 48,838.70
  4. Step 4: Simplify right side
    75,082.70x = 5,486,170,825.82
  5. Step 5: Solve for x
    x = 5,486,170,825.82/75,082.70
  6. Step 6: Final answer
    x = 73,068.37

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1.5x scale

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.