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Finding the Fourth Proportional to 453,487.15, 679,995.42 and 133,597.50

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Solution

The fourth proportional to 453,487.15, 679,995.42 and 133,597.50 is: 200,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,487.15 : 679,995.42 = 133,597.50 : x
  2. Step 2: Convert to fraction form
    453,487.15/679,995.42 = 133,597.50/x
  3. Step 3: Cross multiply
    453,487.15x = 679,995.42 × 133,597.50
  4. Step 4: Simplify right side
    453,487.15x = 90,845,688,123.45
  5. Step 5: Solve for x
    x = 90,845,688,123.45/453,487.15
  6. Step 6: Final answer
    x = 200,326.93

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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.