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Finding the Fourth Proportional to 76,750.16, 114,946.80 and 74,089.52

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Solution

The fourth proportional to 76,750.16, 114,946.80 and 74,089.52 is: 110,962.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,750.16 : 114,946.80 = 74,089.52 : x
  2. Step 2: Convert to fraction form
    76,750.16/114,946.80 = 74,089.52/x
  3. Step 3: Cross multiply
    76,750.16x = 114,946.80 × 74,089.52
  4. Step 4: Simplify right side
    76,750.16x = 8,516,353,237.54
  5. Step 5: Solve for x
    x = 8,516,353,237.54/76,750.16
  6. Step 6: Final answer
    x = 110,962.03

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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.