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Finding the Fourth Proportional to 112,516, 155,291.52 and 67,804

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Solution

The fourth proportional to 112,516, 155,291.52 and 67,804 is: 93,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,516 : 155,291.52 = 67,804 : x
  2. Step 2: Convert to fraction form
    112,516/155,291.52 = 67,804/x
  3. Step 3: Cross multiply
    112,516x = 155,291.52 × 67,804
  4. Step 4: Simplify right side
    112,516x = 10,529,386,222.08
  5. Step 5: Solve for x
    x = 10,529,386,222.08/112,516
  6. Step 6: Final answer
    x = 93,581.23

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