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Finding the Fourth Proportional to 334,693.60, 502,037.20 and 81,975.20

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Solution

The fourth proportional to 334,693.60, 502,037.20 and 81,975.20 is: 122,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,693.60 : 502,037.20 = 81,975.20 : x
  2. Step 2: Convert to fraction form
    334,693.60/502,037.20 = 81,975.20/x
  3. Step 3: Cross multiply
    334,693.60x = 502,037.20 × 81,975.20
  4. Step 4: Simplify right side
    334,693.60x = 41,154,599,877.44
  5. Step 5: Solve for x
    x = 41,154,599,877.44/334,693.60
  6. Step 6: Final answer
    x = 122,962.02

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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.