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Finding the Fourth Proportional to 438,066.76, 657,100.14 and 171,952.60

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Solution

The fourth proportional to 438,066.76, 657,100.14 and 171,952.60 is: 257,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,066.76 : 657,100.14 = 171,952.60 : x
  2. Step 2: Convert to fraction form
    438,066.76/657,100.14 = 171,952.60/x
  3. Step 3: Cross multiply
    438,066.76x = 657,100.14 × 171,952.60
  4. Step 4: Simplify right side
    438,066.76x = 112,990,077,533.36
  5. Step 5: Solve for x
    x = 112,990,077,533.36/438,066.76
  6. Step 6: Final answer
    x = 257,928.90

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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.