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Finding the Fourth Proportional to 145,653.48, 218,492.12 and 40,472.48

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Solution

The fourth proportional to 145,653.48, 218,492.12 and 40,472.48 is: 60,712.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,653.48 : 218,492.12 = 40,472.48 : x
  2. Step 2: Convert to fraction form
    145,653.48/218,492.12 = 40,472.48/x
  3. Step 3: Cross multiply
    145,653.48x = 218,492.12 × 40,472.48
  4. Step 4: Simplify right side
    145,653.48x = 8,842,917,956.86
  5. Step 5: Solve for x
    x = 8,842,917,956.86/145,653.48
  6. Step 6: Final answer
    x = 60,712.03

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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.