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Finding the Fourth Proportional to 429,967.55, 645,028.88 and 177,110.01

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Solution

The fourth proportional to 429,967.55, 645,028.88 and 177,110.01 is: 265,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,967.55 : 645,028.88 = 177,110.01 : x
  2. Step 2: Convert to fraction form
    429,967.55/645,028.88 = 177,110.01/x
  3. Step 3: Cross multiply
    429,967.55x = 645,028.88 × 177,110.01
  4. Step 4: Simplify right side
    429,967.55x = 114,241,070,501.54
  5. Step 5: Solve for x
    x = 114,241,070,501.54/429,967.55
  6. Step 6: Final answer
    x = 265,696.96

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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.