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Finding the Fourth Proportional to 76,165.64, 105,076.01 and 45,933.77

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Solution

The fourth proportional to 76,165.64, 105,076.01 and 45,933.77 is: 63,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.64 : 105,076.01 = 45,933.77 : x
  2. Step 2: Convert to fraction form
    76,165.64/105,076.01 = 45,933.77/x
  3. Step 3: Cross multiply
    76,165.64x = 105,076.01 × 45,933.77
  4. Step 4: Simplify right side
    76,165.64x = 4,826,537,275.86
  5. Step 5: Solve for x
    x = 4,826,537,275.86/76,165.64
  6. Step 6: Final answer
    x = 63,368.96

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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.