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Finding the Fourth Proportional to 453,071.20, 679,585.20 and 153,522.40

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Solution

The fourth proportional to 453,071.20, 679,585.20 and 153,522.40 is: 230,276.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,071.20 : 679,585.20 = 153,522.40 : x
  2. Step 2: Convert to fraction form
    453,071.20/679,585.20 = 153,522.40/x
  3. Step 3: Cross multiply
    453,071.20x = 679,585.20 × 153,522.40
  4. Step 4: Simplify right side
    453,071.20x = 104,331,550,908.48
  5. Step 5: Solve for x
    x = 104,331,550,908.48/453,071.20
  6. Step 6: Final answer
    x = 230,276.28

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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.