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Finding the Fourth Proportional to 476,026, 714,041.64 and 121,040.28

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Solution

The fourth proportional to 476,026, 714,041.64 and 121,040.28 is: 181,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,026 : 714,041.64 = 121,040.28 : x
  2. Step 2: Convert to fraction form
    476,026/714,041.64 = 121,040.28/x
  3. Step 3: Cross multiply
    476,026x = 714,041.64 × 121,040.28
  4. Step 4: Simplify right side
    476,026x = 86,427,800,037.26
  5. Step 5: Solve for x
    x = 86,427,800,037.26/476,026
  6. Step 6: Final answer
    x = 181,561.09

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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.