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Finding the Fourth Proportional to 370,470.72, 555,436.35 and 117,668.10

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Solution

The fourth proportional to 370,470.72, 555,436.35 and 117,668.10 is: 176,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,470.72 : 555,436.35 = 117,668.10 : x
  2. Step 2: Convert to fraction form
    370,470.72/555,436.35 = 117,668.10/x
  3. Step 3: Cross multiply
    370,470.72x = 555,436.35 × 117,668.10
  4. Step 4: Simplify right side
    370,470.72x = 65,357,139,975.44
  5. Step 5: Solve for x
    x = 65,357,139,975.44/370,470.72
  6. Step 6: Final answer
    x = 176,416.48

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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.