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Finding the Fourth Proportional to 318,925.63, 478,504.59 and 148,226.14

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Solution

The fourth proportional to 318,925.63, 478,504.59 and 148,226.14 is: 222,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,925.63 : 478,504.59 = 148,226.14 : x
  2. Step 2: Convert to fraction form
    318,925.63/478,504.59 = 148,226.14/x
  3. Step 3: Cross multiply
    318,925.63x = 478,504.59 × 148,226.14
  4. Step 4: Simplify right side
    318,925.63x = 70,926,888,347.98
  5. Step 5: Solve for x
    x = 70,926,888,347.98/318,925.63
  6. Step 6: Final answer
    x = 222,393.19

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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.