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Finding the Fourth Proportional to 81,870.90, 112,973.81 and 46,060.14

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Solution

The fourth proportional to 81,870.90, 112,973.81 and 46,060.14 is: 63,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870.90 : 112,973.81 = 46,060.14 : x
  2. Step 2: Convert to fraction form
    81,870.90/112,973.81 = 46,060.14/x
  3. Step 3: Cross multiply
    81,870.90x = 112,973.81 × 46,060.14
  4. Step 4: Simplify right side
    81,870.90x = 5,203,589,274.63
  5. Step 5: Solve for x
    x = 5,203,589,274.63/81,870.90
  6. Step 6: Final answer
    x = 63,558.47

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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.