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Finding the Fourth Proportional to 243,588.38, 365,339.43 and 66,109.19

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Solution

The fourth proportional to 243,588.38, 365,339.43 and 66,109.19 is: 99,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,588.38 : 365,339.43 = 66,109.19 : x
  2. Step 2: Convert to fraction form
    243,588.38/365,339.43 = 66,109.19/x
  3. Step 3: Cross multiply
    243,588.38x = 365,339.43 × 66,109.19
  4. Step 4: Simplify right side
    243,588.38x = 24,152,291,965.66
  5. Step 5: Solve for x
    x = 24,152,291,965.66/243,588.38
  6. Step 6: Final answer
    x = 99,152.07

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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.