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Finding the Fourth Proportional to 139,110.16, 208,680.54 and 44,318.29

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Solution

The fourth proportional to 139,110.16, 208,680.54 and 44,318.29 is: 66,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,110.16 : 208,680.54 = 44,318.29 : x
  2. Step 2: Convert to fraction form
    139,110.16/208,680.54 = 44,318.29/x
  3. Step 3: Cross multiply
    139,110.16x = 208,680.54 × 44,318.29
  4. Step 4: Simplify right side
    139,110.16x = 9,248,364,001.18
  5. Step 5: Solve for x
    x = 9,248,364,001.18/139,110.16
  6. Step 6: Final answer
    x = 66,482.31

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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.