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Finding the Fourth Proportional to 104,059.16, 143,602 and 56,312.50

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Solution

The fourth proportional to 104,059.16, 143,602 and 56,312.50 is: 77,711.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,059.16 : 143,602 = 56,312.50 : x
  2. Step 2: Convert to fraction form
    104,059.16/143,602 = 56,312.50/x
  3. Step 3: Cross multiply
    104,059.16x = 143,602 × 56,312.50
  4. Step 4: Simplify right side
    104,059.16x = 8,086,587,625
  5. Step 5: Solve for x
    x = 8,086,587,625/104,059.16
  6. Step 6: Final answer
    x = 77,711.44

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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.