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Finding the Fourth Proportional to 81,907.60, 113,036.12 and 46,099.93

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Solution

The fourth proportional to 81,907.60, 113,036.12 and 46,099.93 is: 63,619.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,907.60 : 113,036.12 = 46,099.93 : x
  2. Step 2: Convert to fraction form
    81,907.60/113,036.12 = 46,099.93/x
  3. Step 3: Cross multiply
    81,907.60x = 113,036.12 × 46,099.93
  4. Step 4: Simplify right side
    81,907.60x = 5,210,957,052.13
  5. Step 5: Solve for x
    x = 5,210,957,052.13/81,907.60
  6. Step 6: Final answer
    x = 63,619.95

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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.