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Finding the Fourth Proportional to 354,141, 531,315.54 and 104,829.48

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Solution

The fourth proportional to 354,141, 531,315.54 and 104,829.48 is: 157,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,141 : 531,315.54 = 104,829.48 : x
  2. Step 2: Convert to fraction form
    354,141/531,315.54 = 104,829.48/x
  3. Step 3: Cross multiply
    354,141x = 531,315.54 × 104,829.48
  4. Step 4: Simplify right side
    354,141x = 55,697,531,774.12
  5. Step 5: Solve for x
    x = 55,697,531,774.12/354,141
  6. Step 6: Final answer
    x = 157,275.02

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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.