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Finding the Fourth Proportional to 321,718.51, 482,565.63 and 97,072.95

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Solution

The fourth proportional to 321,718.51, 482,565.63 and 97,072.95 is: 145,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,718.51 : 482,565.63 = 97,072.95 : x
  2. Step 2: Convert to fraction form
    321,718.51/482,565.63 = 97,072.95/x
  3. Step 3: Cross multiply
    321,718.51x = 482,565.63 × 97,072.95
  4. Step 4: Simplify right side
    321,718.51x = 46,844,071,446.35
  5. Step 5: Solve for x
    x = 46,844,071,446.35/321,718.51
  6. Step 6: Final answer
    x = 145,605.77

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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.