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Finding the Fourth Proportional to 77,714.55, 116,004.47 and 66,692.07

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Solution

The fourth proportional to 77,714.55, 116,004.47 and 66,692.07 is: 99,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,714.55 : 116,004.47 = 66,692.07 : x
  2. Step 2: Convert to fraction form
    77,714.55/116,004.47 = 66,692.07/x
  3. Step 3: Cross multiply
    77,714.55x = 116,004.47 × 66,692.07
  4. Step 4: Simplify right side
    77,714.55x = 7,736,577,900.09
  5. Step 5: Solve for x
    x = 7,736,577,900.09/77,714.55
  6. Step 6: Final answer
    x = 99,551.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.