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Finding the Fourth Proportional to 78,602.21, 108,485.20 and 46,334.91

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Solution

The fourth proportional to 78,602.21, 108,485.20 and 46,334.91 is: 63,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,602.21 : 108,485.20 = 46,334.91 : x
  2. Step 2: Convert to fraction form
    78,602.21/108,485.20 = 46,334.91/x
  3. Step 3: Cross multiply
    78,602.21x = 108,485.20 × 46,334.91
  4. Step 4: Simplify right side
    78,602.21x = 5,026,651,320.07
  5. Step 5: Solve for x
    x = 5,026,651,320.07/78,602.21
  6. Step 6: Final answer
    x = 63,950.51

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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.