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Finding the Fourth Proportional to 371,072.16, 556,674.36 and 118,408.08

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Solution

The fourth proportional to 371,072.16, 556,674.36 and 118,408.08 is: 177,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,072.16 : 556,674.36 = 118,408.08 : x
  2. Step 2: Convert to fraction form
    371,072.16/556,674.36 = 118,408.08/x
  3. Step 3: Cross multiply
    371,072.16x = 556,674.36 × 118,408.08
  4. Step 4: Simplify right side
    371,072.16x = 65,914,742,152.83
  5. Step 5: Solve for x
    x = 65,914,742,152.83/371,072.16
  6. Step 6: Final answer
    x = 177,633.22

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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.