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Finding the Fourth Proportional to 139,587.76, 209,302.06 and 95,268.16

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Solution

The fourth proportional to 139,587.76, 209,302.06 and 95,268.16 is: 142,847.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,587.76 : 209,302.06 = 95,268.16 : x
  2. Step 2: Convert to fraction form
    139,587.76/209,302.06 = 95,268.16/x
  3. Step 3: Cross multiply
    139,587.76x = 209,302.06 × 95,268.16
  4. Step 4: Simplify right side
    139,587.76x = 19,939,822,140.41
  5. Step 5: Solve for x
    x = 19,939,822,140.41/139,587.76
  6. Step 6: Final answer
    x = 142,847.93

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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.