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Finding the Fourth Proportional to 348,253.02, 522,612.54 and 126,637.02

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Solution

The fourth proportional to 348,253.02, 522,612.54 and 126,637.02 is: 190,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,253.02 : 522,612.54 = 126,637.02 : x
  2. Step 2: Convert to fraction form
    348,253.02/522,612.54 = 126,637.02/x
  3. Step 3: Cross multiply
    348,253.02x = 522,612.54 × 126,637.02
  4. Step 4: Simplify right side
    348,253.02x = 66,182,094,680.23
  5. Step 5: Solve for x
    x = 66,182,094,680.23/348,253.02
  6. Step 6: Final answer
    x = 190,040.26

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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.