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Finding the Fourth Proportional to 453,447.40, 680,142.30 and 153,927.40

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Solution

The fourth proportional to 453,447.40, 680,142.30 and 153,927.40 is: 230,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,447.40 : 680,142.30 = 153,927.40 : x
  2. Step 2: Convert to fraction form
    453,447.40/680,142.30 = 153,927.40/x
  3. Step 3: Cross multiply
    453,447.40x = 680,142.30 × 153,927.40
  4. Step 4: Simplify right side
    453,447.40x = 104,692,535,869.02
  5. Step 5: Solve for x
    x = 104,692,535,869.02/453,447.40
  6. Step 6: Final answer
    x = 230,881.32

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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.