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Finding the Fourth Proportional to 76,202.44, 105,159.60 and 42,212.32

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Solution

The fourth proportional to 76,202.44, 105,159.60 and 42,212.32 is: 58,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,202.44 : 105,159.60 = 42,212.32 : x
  2. Step 2: Convert to fraction form
    76,202.44/105,159.60 = 42,212.32/x
  3. Step 3: Cross multiply
    76,202.44x = 105,159.60 × 42,212.32
  4. Step 4: Simplify right side
    76,202.44x = 4,439,030,686.27
  5. Step 5: Solve for x
    x = 4,439,030,686.27/76,202.44
  6. Step 6: Final answer
    x = 58,253.13

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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.