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Finding the Fourth Proportional to 75,008.70, 112,513.05 and 73,259.10

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Solution

The fourth proportional to 75,008.70, 112,513.05 and 73,259.10 is: 109,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.70 : 112,513.05 = 73,259.10 : x
  2. Step 2: Convert to fraction form
    75,008.70/112,513.05 = 73,259.10/x
  3. Step 3: Cross multiply
    75,008.70x = 112,513.05 × 73,259.10
  4. Step 4: Simplify right side
    75,008.70x = 8,242,604,781.26
  5. Step 5: Solve for x
    x = 8,242,604,781.26/75,008.70
  6. Step 6: Final answer
    x = 109,888.65

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Similar ratio
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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.