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Finding the Fourth Proportional to 357,699.48, 536,632.14 and 104,969.72

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Solution

The fourth proportional to 357,699.48, 536,632.14 and 104,969.72 is: 157,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,699.48 : 536,632.14 = 104,969.72 : x
  2. Step 2: Convert to fraction form
    357,699.48/536,632.14 = 104,969.72/x
  3. Step 3: Cross multiply
    357,699.48x = 536,632.14 × 104,969.72
  4. Step 4: Simplify right side
    357,699.48x = 56,330,125,478.80
  5. Step 5: Solve for x
    x = 56,330,125,478.80/357,699.48
  6. Step 6: Final answer
    x = 157,478.91

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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.