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Finding the Fourth Proportional to 134,666.52, 185,831.40 and 74,234.04

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Solution

The fourth proportional to 134,666.52, 185,831.40 and 74,234.04 is: 102,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,666.52 : 185,831.40 = 74,234.04 : x
  2. Step 2: Convert to fraction form
    134,666.52/185,831.40 = 74,234.04/x
  3. Step 3: Cross multiply
    134,666.52x = 185,831.40 × 74,234.04
  4. Step 4: Simplify right side
    134,666.52x = 13,795,015,580.86
  5. Step 5: Solve for x
    x = 13,795,015,580.86/134,666.52
  6. Step 6: Final answer
    x = 102,438.35

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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.