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Finding the Fourth Proportional to 614,300.13, 921,446.55 and 158,891.40

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Solution

The fourth proportional to 614,300.13, 921,446.55 and 158,891.40 is: 238,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,300.13 : 921,446.55 = 158,891.40 : x
  2. Step 2: Convert to fraction form
    614,300.13/921,446.55 = 158,891.40/x
  3. Step 3: Cross multiply
    614,300.13x = 921,446.55 × 158,891.40
  4. Step 4: Simplify right side
    614,300.13x = 146,409,932,354.67
  5. Step 5: Solve for x
    x = 146,409,932,354.67/614,300.13
  6. Step 6: Final answer
    x = 238,336.16

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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.