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Finding the Fourth Proportional to 101,801.90, 140,487.48 and 56,482.86

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Solution

The fourth proportional to 101,801.90, 140,487.48 and 56,482.86 is: 77,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,801.90 : 140,487.48 = 56,482.86 : x
  2. Step 2: Convert to fraction form
    101,801.90/140,487.48 = 56,482.86/x
  3. Step 3: Cross multiply
    101,801.90x = 140,487.48 × 56,482.86
  4. Step 4: Simplify right side
    101,801.90x = 7,935,134,664.59
  5. Step 5: Solve for x
    x = 7,935,134,664.59/101,801.90
  6. Step 6: Final answer
    x = 77,946.82

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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.