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Finding the Fourth Proportional to 173,364.04, 260,081.72 and 78,548.68

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Solution

The fourth proportional to 173,364.04, 260,081.72 and 78,548.68 is: 117,839.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,364.04 : 260,081.72 = 78,548.68 : x
  2. Step 2: Convert to fraction form
    173,364.04/260,081.72 = 78,548.68/x
  3. Step 3: Cross multiply
    173,364.04x = 260,081.72 × 78,548.68
  4. Step 4: Simplify right side
    173,364.04x = 20,429,075,798.13
  5. Step 5: Solve for x
    x = 20,429,075,798.13/173,364.04
  6. Step 6: Final answer
    x = 117,839.18

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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.