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Finding the Fourth Proportional to 357,769.36, 536,678.88 and 121,032.01

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Solution

The fourth proportional to 357,769.36, 536,678.88 and 121,032.01 is: 181,556.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,769.36 : 536,678.88 = 121,032.01 : x
  2. Step 2: Convert to fraction form
    357,769.36/536,678.88 = 121,032.01/x
  3. Step 3: Cross multiply
    357,769.36x = 536,678.88 × 121,032.01
  4. Step 4: Simplify right side
    357,769.36x = 64,955,323,570.95
  5. Step 5: Solve for x
    x = 64,955,323,570.95/357,769.36
  6. Step 6: Final answer
    x = 181,556.42

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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.