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Finding the Fourth Proportional to 354,748.04, 532,209.54 and 105,430.04

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Solution

The fourth proportional to 354,748.04, 532,209.54 and 105,430.04 is: 158,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,748.04 : 532,209.54 = 105,430.04 : x
  2. Step 2: Convert to fraction form
    354,748.04/532,209.54 = 105,430.04/x
  3. Step 3: Cross multiply
    354,748.04x = 532,209.54 × 105,430.04
  4. Step 4: Simplify right side
    354,748.04x = 56,110,873,090.58
  5. Step 5: Solve for x
    x = 56,110,873,090.58/354,748.04
  6. Step 6: Final answer
    x = 158,171.06

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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.