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Finding the Fourth Proportional to 355,051.95, 532,742.55 and 155,346.03

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Solution

The fourth proportional to 355,051.95, 532,742.55 and 155,346.03 is: 233,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,051.95 : 532,742.55 = 155,346.03 : x
  2. Step 2: Convert to fraction form
    355,051.95/532,742.55 = 155,346.03/x
  3. Step 3: Cross multiply
    355,051.95x = 532,742.55 × 155,346.03
  4. Step 4: Simplify right side
    355,051.95x = 82,759,440,154.58
  5. Step 5: Solve for x
    x = 82,759,440,154.58/355,051.95
  6. Step 6: Final answer
    x = 233,091.07

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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.