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Finding the Fourth Proportional to 145,956.30, 218,934.45 and 93,468.30

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Solution

The fourth proportional to 145,956.30, 218,934.45 and 93,468.30 is: 140,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,956.30 : 218,934.45 = 93,468.30 : x
  2. Step 2: Convert to fraction form
    145,956.30/218,934.45 = 93,468.30/x
  3. Step 3: Cross multiply
    145,956.30x = 218,934.45 × 93,468.30
  4. Step 4: Simplify right side
    145,956.30x = 20,463,430,852.94
  5. Step 5: Solve for x
    x = 20,463,430,852.94/145,956.30
  6. Step 6: Final answer
    x = 140,202.45

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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.