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Finding the Fourth Proportional to 120,522.52, 166,303.59 and 66,807.50

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Solution

The fourth proportional to 120,522.52, 166,303.59 and 66,807.50 is: 92,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,522.52 : 166,303.59 = 66,807.50 : x
  2. Step 2: Convert to fraction form
    120,522.52/166,303.59 = 66,807.50/x
  3. Step 3: Cross multiply
    120,522.52x = 166,303.59 × 66,807.50
  4. Step 4: Simplify right side
    120,522.52x = 11,110,327,088.93
  5. Step 5: Solve for x
    x = 11,110,327,088.93/120,522.52
  6. Step 6: Final answer
    x = 92,184.66

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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.