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Finding the Fourth Proportional to 72,373.84, 108,400.36 and 55,610.48

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Solution

The fourth proportional to 72,373.84, 108,400.36 and 55,610.48 is: 83,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.84 : 108,400.36 = 55,610.48 : x
  2. Step 2: Convert to fraction form
    72,373.84/108,400.36 = 55,610.48/x
  3. Step 3: Cross multiply
    72,373.84x = 108,400.36 × 55,610.48
  4. Step 4: Simplify right side
    72,373.84x = 6,028,196,051.77
  5. Step 5: Solve for x
    x = 6,028,196,051.77/72,373.84
  6. Step 6: Final answer
    x = 83,292.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.