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Finding the Fourth Proportional to 318,825.60, 478,126.64 and 94,126.08

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Solution

The fourth proportional to 318,825.60, 478,126.64 and 94,126.08 is: 141,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,825.60 : 478,126.64 = 94,126.08 : x
  2. Step 2: Convert to fraction form
    318,825.60/478,126.64 = 94,126.08/x
  3. Step 3: Cross multiply
    318,825.60x = 478,126.64 × 94,126.08
  4. Step 4: Simplify right side
    318,825.60x = 45,004,186,366.77
  5. Step 5: Solve for x
    x = 45,004,186,366.77/318,825.60
  6. Step 6: Final answer
    x = 141,156.13

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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.