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Finding the Fourth Proportional to 77,415.93, 106,710.51 and 58,266.91

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Solution

The fourth proportional to 77,415.93, 106,710.51 and 58,266.91 is: 80,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,415.93 : 106,710.51 = 58,266.91 : x
  2. Step 2: Convert to fraction form
    77,415.93/106,710.51 = 58,266.91/x
  3. Step 3: Cross multiply
    77,415.93x = 106,710.51 × 58,266.91
  4. Step 4: Simplify right side
    77,415.93x = 6,217,691,682.22
  5. Step 5: Solve for x
    x = 6,217,691,682.22/77,415.93
  6. Step 6: Final answer
    x = 80,315.41

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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.