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Finding the Fourth Proportional to 104,301.60, 143,935.92 and 56,554.80

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Solution

The fourth proportional to 104,301.60, 143,935.92 and 56,554.80 is: 78,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,301.60 : 143,935.92 = 56,554.80 : x
  2. Step 2: Convert to fraction form
    104,301.60/143,935.92 = 56,554.80/x
  3. Step 3: Cross multiply
    104,301.60x = 143,935.92 × 56,554.80
  4. Step 4: Simplify right side
    104,301.60x = 8,140,267,168.42
  5. Step 5: Solve for x
    x = 8,140,267,168.42/104,301.60
  6. Step 6: Final answer
    x = 78,045.47

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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.