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Finding the Fourth Proportional to 262,041.96, 392,994.90 and 75,009.72

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Solution

The fourth proportional to 262,041.96, 392,994.90 and 75,009.72 is: 112,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,041.96 : 392,994.90 = 75,009.72 : x
  2. Step 2: Convert to fraction form
    262,041.96/392,994.90 = 75,009.72/x
  3. Step 3: Cross multiply
    262,041.96x = 392,994.90 × 75,009.72
  4. Step 4: Simplify right side
    262,041.96x = 29,478,437,410.43
  5. Step 5: Solve for x
    x = 29,478,437,410.43/262,041.96
  6. Step 6: Final answer
    x = 112,495.10

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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.