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Finding the Fourth Proportional to 109,953.64, 151,752.34 and 69,671.17

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Solution

The fourth proportional to 109,953.64, 151,752.34 and 69,671.17 is: 96,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,953.64 : 151,752.34 = 69,671.17 : x
  2. Step 2: Convert to fraction form
    109,953.64/151,752.34 = 69,671.17/x
  3. Step 3: Cross multiply
    109,953.64x = 151,752.34 × 69,671.17
  4. Step 4: Simplify right side
    109,953.64x = 10,572,762,962.92
  5. Step 5: Solve for x
    x = 10,572,762,962.92/109,953.64
  6. Step 6: Final answer
    x = 96,156.56

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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.