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Finding the Fourth Proportional to 402,725.16, 604,076.88 and 99,122.02

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Solution

The fourth proportional to 402,725.16, 604,076.88 and 99,122.02 is: 148,680.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,725.16 : 604,076.88 = 99,122.02 : x
  2. Step 2: Convert to fraction form
    402,725.16/604,076.88 = 99,122.02/x
  3. Step 3: Cross multiply
    402,725.16x = 604,076.88 × 99,122.02
  4. Step 4: Simplify right side
    402,725.16x = 59,877,322,091.09
  5. Step 5: Solve for x
    x = 59,877,322,091.09/402,725.16
  6. Step 6: Final answer
    x = 148,680.36

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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.