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Finding the Fourth Proportional to 77,303.70, 106,730.28 and 59,366.52

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Solution

The fourth proportional to 77,303.70, 106,730.28 and 59,366.52 is: 81,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,303.70 : 106,730.28 = 59,366.52 : x
  2. Step 2: Convert to fraction form
    77,303.70/106,730.28 = 59,366.52/x
  3. Step 3: Cross multiply
    77,303.70x = 106,730.28 × 59,366.52
  4. Step 4: Simplify right side
    77,303.70x = 6,336,205,302.23
  5. Step 5: Solve for x
    x = 6,336,205,302.23/77,303.70
  6. Step 6: Final answer
    x = 81,965.10

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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.