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Finding the Fourth Proportional to 81,354.60, 112,275.57 and 46,904.94

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Solution

The fourth proportional to 81,354.60, 112,275.57 and 46,904.94 is: 64,732.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,354.60 : 112,275.57 = 46,904.94 : x
  2. Step 2: Convert to fraction form
    81,354.60/112,275.57 = 46,904.94/x
  3. Step 3: Cross multiply
    81,354.60x = 112,275.57 × 46,904.94
  4. Step 4: Simplify right side
    81,354.60x = 5,266,279,050.21
  5. Step 5: Solve for x
    x = 5,266,279,050.21/81,354.60
  6. Step 6: Final answer
    x = 64,732.41

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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.