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Finding the Fourth Proportional to 370,374.51, 555,503.81 and 117,621.72

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Solution

The fourth proportional to 370,374.51, 555,503.81 and 117,621.72 is: 176,414.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,374.51 : 555,503.81 = 117,621.72 : x
  2. Step 2: Convert to fraction form
    370,374.51/555,503.81 = 117,621.72/x
  3. Step 3: Cross multiply
    370,374.51x = 555,503.81 × 117,621.72
  4. Step 4: Simplify right side
    370,374.51x = 65,339,313,010.64
  5. Step 5: Solve for x
    x = 65,339,313,010.64/370,374.51
  6. Step 6: Final answer
    x = 176,414.17

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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.