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Finding the Fourth Proportional to 76,153.91, 105,094.94 and 50,615.82

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Solution

The fourth proportional to 76,153.91, 105,094.94 and 50,615.82 is: 69,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.91 : 105,094.94 = 50,615.82 : x
  2. Step 2: Convert to fraction form
    76,153.91/105,094.94 = 50,615.82/x
  3. Step 3: Cross multiply
    76,153.91x = 105,094.94 × 50,615.82
  4. Step 4: Simplify right side
    76,153.91x = 5,319,466,312.87
  5. Step 5: Solve for x
    x = 5,319,466,312.87/76,153.91
  6. Step 6: Final answer
    x = 69,851.52

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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.