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Finding the Fourth Proportional to 321,761.79, 444,030.05 and 176,570.01

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Solution

The fourth proportional to 321,761.79, 444,030.05 and 176,570.01 is: 243,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,761.79 : 444,030.05 = 176,570.01 : x
  2. Step 2: Convert to fraction form
    321,761.79/444,030.05 = 176,570.01/x
  3. Step 3: Cross multiply
    321,761.79x = 444,030.05 × 176,570.01
  4. Step 4: Simplify right side
    321,761.79x = 78,402,390,810.23
  5. Step 5: Solve for x
    x = 78,402,390,810.23/321,761.79
  6. Step 6: Final answer
    x = 243,665.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.