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Finding the Fourth Proportional to 101,482.95, 140,043.60 and 56,162.82

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Solution

The fourth proportional to 101,482.95, 140,043.60 and 56,162.82 is: 77,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,482.95 : 140,043.60 = 56,162.82 : x
  2. Step 2: Convert to fraction form
    101,482.95/140,043.60 = 56,162.82/x
  3. Step 3: Cross multiply
    101,482.95x = 140,043.60 × 56,162.82
  4. Step 4: Simplify right side
    101,482.95x = 7,865,243,498.95
  5. Step 5: Solve for x
    x = 7,865,243,498.95/101,482.95
  6. Step 6: Final answer
    x = 77,503.10

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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.