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Finding the Fourth Proportional to 101,655.59, 140,285.05 and 56,334.32

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Solution

The fourth proportional to 101,655.59, 140,285.05 and 56,334.32 is: 77,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,655.59 : 140,285.05 = 56,334.32 : x
  2. Step 2: Convert to fraction form
    101,655.59/140,285.05 = 56,334.32/x
  3. Step 3: Cross multiply
    101,655.59x = 140,285.05 × 56,334.32
  4. Step 4: Simplify right side
    101,655.59x = 7,902,863,107.79
  5. Step 5: Solve for x
    x = 7,902,863,107.79/101,655.59
  6. Step 6: Final answer
    x = 77,741.55

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1.5x scale

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.