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Finding the Fourth Proportional to 77,019.66, 106,275.15 and 43,484.94

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Solution

The fourth proportional to 77,019.66, 106,275.15 and 43,484.94 is: 60,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,019.66 : 106,275.15 = 43,484.94 : x
  2. Step 2: Convert to fraction form
    77,019.66/106,275.15 = 43,484.94/x
  3. Step 3: Cross multiply
    77,019.66x = 106,275.15 × 43,484.94
  4. Step 4: Simplify right side
    77,019.66x = 4,621,368,521.24
  5. Step 5: Solve for x
    x = 4,621,368,521.24/77,019.66
  6. Step 6: Final answer
    x = 60,002.45

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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.