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Finding the Fourth Proportional to 216,869.04, 325,325.55 and 74,695.74

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Solution

The fourth proportional to 216,869.04, 325,325.55 and 74,695.74 is: 112,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,869.04 : 325,325.55 = 74,695.74 : x
  2. Step 2: Convert to fraction form
    216,869.04/325,325.55 = 74,695.74/x
  3. Step 3: Cross multiply
    216,869.04x = 325,325.55 × 74,695.74
  4. Step 4: Simplify right side
    216,869.04x = 24,300,432,698.16
  5. Step 5: Solve for x
    x = 24,300,432,698.16/216,869.04
  6. Step 6: Final answer
    x = 112,051.18

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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.