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Finding the Fourth Proportional to 134,807.64, 186,035.34 and 74,377.32

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Solution

The fourth proportional to 134,807.64, 186,035.34 and 74,377.32 is: 102,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,807.64 : 186,035.34 = 74,377.32 : x
  2. Step 2: Convert to fraction form
    134,807.64/186,035.34 = 74,377.32/x
  3. Step 3: Cross multiply
    134,807.64x = 186,035.34 × 74,377.32
  4. Step 4: Simplify right side
    134,807.64x = 13,836,810,014.49
  5. Step 5: Solve for x
    x = 13,836,810,014.49/134,807.64
  6. Step 6: Final answer
    x = 102,641.14

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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.