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Finding the Fourth Proportional to 72,988.85, 109,482.84 and 23,068.85

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Solution

The fourth proportional to 72,988.85, 109,482.84 and 23,068.85 is: 34,603.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,988.85 : 109,482.84 = 23,068.85 : x
  2. Step 2: Convert to fraction form
    72,988.85/109,482.84 = 23,068.85/x
  3. Step 3: Cross multiply
    72,988.85x = 109,482.84 × 23,068.85
  4. Step 4: Simplify right side
    72,988.85x = 2,525,643,281.96
  5. Step 5: Solve for x
    x = 2,525,643,281.96/72,988.85
  6. Step 6: Final answer
    x = 34,603.14

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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.