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Finding the Fourth Proportional to 113,804.19, 170,728.16 and 43,678.04

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Solution

The fourth proportional to 113,804.19, 170,728.16 and 43,678.04 is: 65,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,804.19 : 170,728.16 = 43,678.04 : x
  2. Step 2: Convert to fraction form
    113,804.19/170,728.16 = 43,678.04/x
  3. Step 3: Cross multiply
    113,804.19x = 170,728.16 × 43,678.04
  4. Step 4: Simplify right side
    113,804.19x = 7,457,070,329.58
  5. Step 5: Solve for x
    x = 7,457,070,329.58/113,804.19
  6. Step 6: Final answer
    x = 65,525.45

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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.