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Finding the Fourth Proportional to 109,066.80, 163,607.04 and 42,484.80

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Solution

The fourth proportional to 109,066.80, 163,607.04 and 42,484.80 is: 63,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,066.80 : 163,607.04 = 42,484.80 : x
  2. Step 2: Convert to fraction form
    109,066.80/163,607.04 = 42,484.80/x
  3. Step 3: Cross multiply
    109,066.80x = 163,607.04 × 42,484.80
  4. Step 4: Simplify right side
    109,066.80x = 6,950,812,372.99
  5. Step 5: Solve for x
    x = 6,950,812,372.99/109,066.80
  6. Step 6: Final answer
    x = 63,729.86

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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.