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Finding the Fourth Proportional to 359,506.46, 539,259.70 and 122,851.20

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Solution

The fourth proportional to 359,506.46, 539,259.70 and 122,851.20 is: 184,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,506.46 : 539,259.70 = 122,851.20 : x
  2. Step 2: Convert to fraction form
    359,506.46/539,259.70 = 122,851.20/x
  3. Step 3: Cross multiply
    359,506.46x = 539,259.70 × 122,851.20
  4. Step 4: Simplify right side
    359,506.46x = 66,248,701,256.64
  5. Step 5: Solve for x
    x = 66,248,701,256.64/359,506.46
  6. Step 6: Final answer
    x = 184,276.80

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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.