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Finding the Fourth Proportional to 104,152.80, 143,730.96 and 58,830.87

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Solution

The fourth proportional to 104,152.80, 143,730.96 and 58,830.87 is: 81,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,152.80 : 143,730.96 = 58,830.87 : x
  2. Step 2: Convert to fraction form
    104,152.80/143,730.96 = 58,830.87/x
  3. Step 3: Cross multiply
    104,152.80x = 143,730.96 × 58,830.87
  4. Step 4: Simplify right side
    104,152.80x = 8,455,817,422.74
  5. Step 5: Solve for x
    x = 8,455,817,422.74/104,152.80
  6. Step 6: Final answer
    x = 81,186.65

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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.