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Finding the Fourth Proportional to 104,042.50, 143,577.62 and 56,294.80

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Solution

The fourth proportional to 104,042.50, 143,577.62 and 56,294.80 is: 77,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,042.50 : 143,577.62 = 56,294.80 : x
  2. Step 2: Convert to fraction form
    104,042.50/143,577.62 = 56,294.80/x
  3. Step 3: Cross multiply
    104,042.50x = 143,577.62 × 56,294.80
  4. Step 4: Simplify right side
    104,042.50x = 8,082,673,402.38
  5. Step 5: Solve for x
    x = 8,082,673,402.38/104,042.50
  6. Step 6: Final answer
    x = 77,686.27

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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.