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Finding the Fourth Proportional to 318,809.92, 478,103.64 and 94,110.88

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Solution

The fourth proportional to 318,809.92, 478,103.64 and 94,110.88 is: 141,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,809.92 : 478,103.64 = 94,110.88 : x
  2. Step 2: Convert to fraction form
    318,809.92/478,103.64 = 94,110.88/x
  3. Step 3: Cross multiply
    318,809.92x = 478,103.64 × 94,110.88
  4. Step 4: Simplify right side
    318,809.92x = 44,994,754,291.60
  5. Step 5: Solve for x
    x = 44,994,754,291.60/318,809.92
  6. Step 6: Final answer
    x = 141,133.48

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1.5x scale

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.