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Finding the Fourth Proportional to 76,937.64, 106,173.54 and 42,944.16

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Solution

The fourth proportional to 76,937.64, 106,173.54 and 42,944.16 is: 59,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,937.64 : 106,173.54 = 42,944.16 : x
  2. Step 2: Convert to fraction form
    76,937.64/106,173.54 = 42,944.16/x
  3. Step 3: Cross multiply
    76,937.64x = 106,173.54 × 42,944.16
  4. Step 4: Simplify right side
    76,937.64x = 4,559,533,489.53
  5. Step 5: Solve for x
    x = 4,559,533,489.53/76,937.64
  6. Step 6: Final answer
    x = 59,262.72

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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.