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Finding the Fourth Proportional to 113,674.64, 156,875.84 and 63,373.64

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Solution

The fourth proportional to 113,674.64, 156,875.84 and 63,373.64 is: 87,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,674.64 : 156,875.84 = 63,373.64 : x
  2. Step 2: Convert to fraction form
    113,674.64/156,875.84 = 63,373.64/x
  3. Step 3: Cross multiply
    113,674.64x = 156,875.84 × 63,373.64
  4. Step 4: Simplify right side
    113,674.64x = 9,941,793,008.86
  5. Step 5: Solve for x
    x = 9,941,793,008.86/113,674.64
  6. Step 6: Final answer
    x = 87,458.32

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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.