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Finding the Fourth Proportional to 119,341.80, 164,692.86 and 65,627.18

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Solution

The fourth proportional to 119,341.80, 164,692.86 and 65,627.18 is: 90,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,341.80 : 164,692.86 = 65,627.18 : x
  2. Step 2: Convert to fraction form
    119,341.80/164,692.86 = 65,627.18/x
  3. Step 3: Cross multiply
    119,341.80x = 164,692.86 × 65,627.18
  4. Step 4: Simplify right side
    119,341.80x = 10,808,327,967.93
  5. Step 5: Solve for x
    x = 10,808,327,967.93/119,341.80
  6. Step 6: Final answer
    x = 90,566.16

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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.