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Finding the Fourth Proportional to 104,167.35, 143,750.70 and 56,420.82

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Solution

The fourth proportional to 104,167.35, 143,750.70 and 56,420.82 is: 77,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,167.35 : 143,750.70 = 56,420.82 : x
  2. Step 2: Convert to fraction form
    104,167.35/143,750.70 = 56,420.82/x
  3. Step 3: Cross multiply
    104,167.35x = 143,750.70 × 56,420.82
  4. Step 4: Simplify right side
    104,167.35x = 8,110,532,369.57
  5. Step 5: Solve for x
    x = 8,110,532,369.57/104,167.35
  6. Step 6: Final answer
    x = 77,860.60

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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.