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Finding the Fourth Proportional to 370,289.84, 555,454.20 and 117,590.48

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Solution

The fourth proportional to 370,289.84, 555,454.20 and 117,590.48 is: 176,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,289.84 : 555,454.20 = 117,590.48 : x
  2. Step 2: Convert to fraction form
    370,289.84/555,454.20 = 117,590.48/x
  3. Step 3: Cross multiply
    370,289.84x = 555,454.20 × 117,590.48
  4. Step 4: Simplify right side
    370,289.84x = 65,316,125,996.02
  5. Step 5: Solve for x
    x = 65,316,125,996.02/370,289.84
  6. Step 6: Final answer
    x = 176,391.89

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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.