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Finding the Fourth Proportional to 88,145.37, 121,628.37 and 51,848.46

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Solution

The fourth proportional to 88,145.37, 121,628.37 and 51,848.46 is: 71,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.37 : 121,628.37 = 51,848.46 : x
  2. Step 2: Convert to fraction form
    88,145.37/121,628.37 = 51,848.46/x
  3. Step 3: Cross multiply
    88,145.37x = 121,628.37 × 51,848.46
  4. Step 4: Simplify right side
    88,145.37x = 6,306,243,676.81
  5. Step 5: Solve for x
    x = 6,306,243,676.81/88,145.37
  6. Step 6: Final answer
    x = 71,543.67

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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.