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Finding the Fourth Proportional to 104,796.80, 156,886.32 and 69,192.80

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Solution

The fourth proportional to 104,796.80, 156,886.32 and 69,192.80 is: 103,585.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,796.80 : 156,886.32 = 69,192.80 : x
  2. Step 2: Convert to fraction form
    104,796.80/156,886.32 = 69,192.80/x
  3. Step 3: Cross multiply
    104,796.80x = 156,886.32 × 69,192.80
  4. Step 4: Simplify right side
    104,796.80x = 10,855,403,762.50
  5. Step 5: Solve for x
    x = 10,855,403,762.50/104,796.80
  6. Step 6: Final answer
    x = 103,585.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.