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Finding the Fourth Proportional to 78,503.96, 108,332.17 and 44,514.75

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Solution

The fourth proportional to 78,503.96, 108,332.17 and 44,514.75 is: 61,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,503.96 : 108,332.17 = 44,514.75 : x
  2. Step 2: Convert to fraction form
    78,503.96/108,332.17 = 44,514.75/x
  3. Step 3: Cross multiply
    78,503.96x = 108,332.17 × 44,514.75
  4. Step 4: Simplify right side
    78,503.96x = 4,822,379,464.51
  5. Step 5: Solve for x
    x = 4,822,379,464.51/78,503.96
  6. Step 6: Final answer
    x = 61,428.49

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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.