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Finding the Fourth Proportional to 453,051.75, 679,153.21 and 153,322.49

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Solution

The fourth proportional to 453,051.75, 679,153.21 and 153,322.49 is: 229,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,051.75 : 679,153.21 = 153,322.49 : x
  2. Step 2: Convert to fraction form
    453,051.75/679,153.21 = 153,322.49/x
  3. Step 3: Cross multiply
    453,051.75x = 679,153.21 × 153,322.49
  4. Step 4: Simplify right side
    453,051.75x = 104,129,461,248.69
  5. Step 5: Solve for x
    x = 104,129,461,248.69/453,051.75
  6. Step 6: Final answer
    x = 229,840.10

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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.