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Finding the Fourth Proportional to 76,013.98, 104,905.08 and 43,758.46

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Solution

The fourth proportional to 76,013.98, 104,905.08 and 43,758.46 is: 60,390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,013.98 : 104,905.08 = 43,758.46 : x
  2. Step 2: Convert to fraction form
    76,013.98/104,905.08 = 43,758.46/x
  3. Step 3: Cross multiply
    76,013.98x = 104,905.08 × 43,758.46
  4. Step 4: Simplify right side
    76,013.98x = 4,590,484,746.98
  5. Step 5: Solve for x
    x = 4,590,484,746.98/76,013.98
  6. Step 6: Final answer
    x = 60,390.01

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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.