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Finding the Fourth Proportional to 318,955.32, 478,476.72 and 94,333.41

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Solution

The fourth proportional to 318,955.32, 478,476.72 and 94,333.41 is: 141,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,955.32 : 478,476.72 = 94,333.41 : x
  2. Step 2: Convert to fraction form
    318,955.32/478,476.72 = 94,333.41/x
  3. Step 3: Cross multiply
    318,955.32x = 478,476.72 × 94,333.41
  4. Step 4: Simplify right side
    318,955.32x = 45,136,340,603.22
  5. Step 5: Solve for x
    x = 45,136,340,603.22/318,955.32
  6. Step 6: Final answer
    x = 141,513.05

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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.