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Finding the Fourth Proportional to 318,316.75, 477,373.68 and 105,044.92

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Solution

The fourth proportional to 318,316.75, 477,373.68 and 105,044.92 is: 157,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,316.75 : 477,373.68 = 105,044.92 : x
  2. Step 2: Convert to fraction form
    318,316.75/477,373.68 = 105,044.92/x
  3. Step 3: Cross multiply
    318,316.75x = 477,373.68 × 105,044.92
  4. Step 4: Simplify right side
    318,316.75x = 50,145,680,025.71
  5. Step 5: Solve for x
    x = 50,145,680,025.71/318,316.75
  6. Step 6: Final answer
    x = 157,533.90

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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.